diff --git a/app/soapbox/actions/notifications.ts b/app/soapbox/actions/notifications.ts
index 0e396b89a..adeb46bf9 100644
--- a/app/soapbox/actions/notifications.ts
+++ b/app/soapbox/actions/notifications.ts
@@ -89,6 +89,7 @@ const updateNotifications = (notification: APIEntity) =>
 
 const updateNotificationsQueue = (notification: APIEntity, intlMessages: Record<string, string>, intlLocale: string, curPath: string) =>
   (dispatch: AppDispatch, getState: () => RootState) => {
+    if (!notification.type) return; // drop invalid notifications
     if (notification.type === 'pleroma:chat_mention') return; // Drop chat notifications, handle them per-chat
 
     const showAlert = getSettings(getState()).getIn(['notifications', 'alerts', notification.type]);
diff --git a/app/soapbox/features/notifications/components/filter_bar.js b/app/soapbox/features/notifications/components/filter_bar.js
index 81e370a3a..a656ce290 100644
--- a/app/soapbox/features/notifications/components/filter_bar.js
+++ b/app/soapbox/features/notifications/components/filter_bar.js
@@ -57,7 +57,7 @@ class NotificationFilterBar extends React.PureComponent {
         name: 'mention',
       });
       items.push({
-        text: <Icon src={require('@tabler/icons/thumb-up.svg')} />,
+        text: <Icon src={require('@tabler/icons/heart.svg')} />,
         title: intl.formatMessage(messages.favourites),
         action: this.onClick('favourite'),
         name: 'favourite',
@@ -81,7 +81,7 @@ class NotificationFilterBar extends React.PureComponent {
         name: 'poll',
       });
       items.push({
-        text: <Icon src={require('@tabler/icons/home.svg')} />,
+        text: <Icon src={require('@tabler/icons/bell-ringing.svg')} />,
         title: intl.formatMessage(messages.statuses),
         action: this.onClick('status'),
         name: 'status',
diff --git a/app/soapbox/features/notifications/components/notification.tsx b/app/soapbox/features/notifications/components/notification.tsx
index 1073ff3aa..9f2c02778 100644
--- a/app/soapbox/features/notifications/components/notification.tsx
+++ b/app/soapbox/features/notifications/components/notification.tsx
@@ -9,12 +9,12 @@ import { HStack, Text, Emoji } from 'soapbox/components/ui';
 import AccountContainer from 'soapbox/containers/account_container';
 import StatusContainer from 'soapbox/containers/status_container';
 import { useAppSelector } from 'soapbox/hooks';
+import { NotificationType, validType } from 'soapbox/utils/notification';
 
 import type { ScrollPosition } from 'soapbox/components/status';
-import type { NotificationType } from 'soapbox/normalizers/notification';
 import type { Account, Status, Notification as NotificationEntity } from 'soapbox/types/entities';
 
-const notificationForScreenReader = (intl: ReturnType<typeof useIntl>, message: string, timestamp: Date) => {
+const notificationForScreenReader = (intl: IntlShape, message: string, timestamp: Date) => {
   const output = [message];
 
   output.push(intl.formatDate(timestamp, { hour: '2-digit', minute: '2-digit', month: 'short', day: 'numeric' }));
@@ -48,7 +48,7 @@ const icons: Record<NotificationType, string> = {
   user_approved: require('@tabler/icons/user-plus.svg'),
 };
 
-const messages: Record<string | number | symbol, MessageDescriptor> = defineMessages({
+const messages: Record<NotificationType, MessageDescriptor> = defineMessages({
   follow: {
     id: 'notification.follow',
     defaultMessage: '{name} followed you',
@@ -82,7 +82,7 @@ const messages: Record<string | number | symbol, MessageDescriptor> = defineMess
     defaultMessage: '{name} moved to {targetName}',
   },
   'pleroma:chat_mention': {
-    id: 'notification.chat_mention',
+    id: 'notification.pleroma:chat_mention',
     defaultMessage: '{name} sent you a message',
   },
   'pleroma:emoji_reaction': {
@@ -221,7 +221,7 @@ const Notification: React.FC<INotificaton> = (props) => {
           className='w-4 h-4 flex-none'
         />
       );
-    } else if (type) {
+    } else if (validType(type)) {
       return (
         <Icon
           src={icons[type]}
@@ -279,27 +279,25 @@ const Notification: React.FC<INotificaton> = (props) => {
 
   const targetName = notification.target && typeof notification.target === 'object' ? notification.target.acct : '';
 
-  const message: React.ReactNode = type && account && typeof account === 'object' ? buildMessage(intl, type, account, notification.total_count, targetName, instance.title) : null;
+  const message: React.ReactNode = validType(type) && account && typeof account === 'object' ? buildMessage(intl, type, account, notification.total_count, targetName, instance.title) : null;
+
+  const ariaLabel = validType(type) ? (
+    notificationForScreenReader(
+      intl,
+      intl.formatMessage(messages[type], {
+        name: account && typeof account === 'object' ? account.acct : '',
+        targetName,
+      }),
+      notification.created_at,
+    )
+  ) : '';
 
   return (
     <HotKeys handlers={getHandlers()} data-testid='notification'>
       <div
         className='notification focusable'
         tabIndex={0}
-        aria-label={
-          notificationForScreenReader(
-            intl,
-            intl.formatMessage({
-              id: type && messages[type].id,
-              defaultMessage: type && messages[type].defaultMessage,
-            },
-            {
-              name: account && typeof account === 'object' ? account.acct : '',
-              targetName,
-            }),
-            notification.created_at,
-          )
-        }
+        aria-label={ariaLabel}
       >
         <div className='p-4 focusable'>
           <div className='mb-2'>
diff --git a/app/soapbox/locales/ar.json b/app/soapbox/locales/ar.json
index d1e705697..a508846d9 100644
--- a/app/soapbox/locales/ar.json
+++ b/app/soapbox/locales/ar.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "أُعجِب {name} بمنشورك",
   "notification.follow": "{name} يتابعك",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/ast.json b/app/soapbox/locales/ast.json
index ef5c65bd9..8ddb7bcaa 100644
--- a/app/soapbox/locales/ast.json
+++ b/app/soapbox/locales/ast.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} favorited your post",
   "notification.follow": "{name} siguióte",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/bg.json b/app/soapbox/locales/bg.json
index 4e937e97c..296e6b6b3 100644
--- a/app/soapbox/locales/bg.json
+++ b/app/soapbox/locales/bg.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} хареса твоята публикация",
   "notification.follow": "{name} те последва",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/bn.json b/app/soapbox/locales/bn.json
index c030722fa..adc441285 100644
--- a/app/soapbox/locales/bn.json
+++ b/app/soapbox/locales/bn.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} আপনার কার্যক্রম পছন্দ করেছেন",
   "notification.follow": "{name} আপনাকে অনুসরণ করেছেন",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/br.json b/app/soapbox/locales/br.json
index 9bec55d5b..4ee233e15 100644
--- a/app/soapbox/locales/br.json
+++ b/app/soapbox/locales/br.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} favorited your post",
   "notification.follow": "{name} followed you",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/ca.json b/app/soapbox/locales/ca.json
index e36ad89bc..3007d4446 100644
--- a/app/soapbox/locales/ca.json
+++ b/app/soapbox/locales/ca.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} t'ha enviat un missatge",
+  "notification.pleroma:chat_mention": "{name} t'ha enviat un missatge",
   "notification.favourite": "{name} ha afavorit el teu estat",
   "notification.follow": "{name} t'ha seguit",
   "notification.follow_request": "{name} ha sol·licitat seguir-te",
diff --git a/app/soapbox/locales/co.json b/app/soapbox/locales/co.json
index 79214836a..d57318943 100644
--- a/app/soapbox/locales/co.json
+++ b/app/soapbox/locales/co.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} hà aghjuntu u vostru statutu à i so favuriti",
   "notification.follow": "{name} v'hà seguitatu",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/cs.json b/app/soapbox/locales/cs.json
index 155e1fa95..3e5e5c77a 100644
--- a/app/soapbox/locales/cs.json
+++ b/app/soapbox/locales/cs.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} Vám poslal/a zprávu",
+  "notification.pleroma:chat_mention": "{name} Vám poslal/a zprávu",
   "notification.favourite": "{name} si oblíbil/a váš příspěvek",
   "notification.follow": "{name} vás začal/a sledovat",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/cy.json b/app/soapbox/locales/cy.json
index bfc9c701b..b27bbc575 100644
--- a/app/soapbox/locales/cy.json
+++ b/app/soapbox/locales/cy.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "hoffodd {name} eich tŵt",
   "notification.follow": "dilynodd {name} chi",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/da.json b/app/soapbox/locales/da.json
index a935d51cf..16ac072a2 100644
--- a/app/soapbox/locales/da.json
+++ b/app/soapbox/locales/da.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} favoriserede din status",
   "notification.follow": "{name} fulgte dig",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/de.json b/app/soapbox/locales/de.json
index 366373390..2fcb8e5f0 100644
--- a/app/soapbox/locales/de.json
+++ b/app/soapbox/locales/de.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} hat dir eine Nachricht gesendet",
+  "notification.pleroma:chat_mention": "{name} hat dir eine Nachricht gesendet",
   "notification.favourite": "{name} hat deinen Beitrag favorisiert",
   "notification.follow": "{name} folgt dir",
   "notification.follow_request": "{name} möchte dir folgen",
diff --git a/app/soapbox/locales/defaultMessages.json b/app/soapbox/locales/defaultMessages.json
index e9c48411f..c5730c2e8 100644
--- a/app/soapbox/locales/defaultMessages.json
+++ b/app/soapbox/locales/defaultMessages.json
@@ -4318,7 +4318,7 @@
       },
       {
         "defaultMessage": "{name} sent you a message",
-        "id": "notification.chat_mention"
+        "id": "notification.pleroma:chat_mention"
       },
       {
         "defaultMessage": "{name} reacted to your post",
diff --git a/app/soapbox/locales/el.json b/app/soapbox/locales/el.json
index b601e68e8..9ee73f0df 100644
--- a/app/soapbox/locales/el.json
+++ b/app/soapbox/locales/el.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "Ο/Η {name} σημείωσε ως αγαπημένη την κατάστασή σου",
   "notification.follow": "Ο/Η {name} σε ακολούθησε",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/en-Shaw.json b/app/soapbox/locales/en-Shaw.json
index 027855309..bf0663c44 100644
--- a/app/soapbox/locales/en-Shaw.json
+++ b/app/soapbox/locales/en-Shaw.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} 𐑕𐑧𐑯𐑑 𐑿 𐑩 𐑥𐑧𐑕𐑦𐑡",
+  "notification.pleroma:chat_mention": "{name} 𐑕𐑧𐑯𐑑 𐑿 𐑩 𐑥𐑧𐑕𐑦𐑡",
   "notification.favourite": "{name} 𐑤𐑲𐑒𐑑 𐑘𐑹 𐑐𐑴𐑕𐑑",
   "notification.follow": "{name} 𐑓𐑪𐑤𐑴𐑛 𐑿",
   "notification.follow_request": "{name} 𐑣𐑨𐑟 𐑮𐑦𐑒𐑢𐑧𐑕𐑑𐑩𐑛 𐑑 𐑓𐑪𐑤𐑴 𐑿",
diff --git a/app/soapbox/locales/en.json b/app/soapbox/locales/en.json
index 9a1af5b43..2d226e81d 100644
--- a/app/soapbox/locales/en.json
+++ b/app/soapbox/locales/en.json
@@ -712,7 +712,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} liked your post",
   "notification.follow": "{name} followed you",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/eo.json b/app/soapbox/locales/eo.json
index 4c3bd6166..7b4b89c5f 100644
--- a/app/soapbox/locales/eo.json
+++ b/app/soapbox/locales/eo.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} stelumis vian mesaĝon",
   "notification.follow": "{name} eksekvis vin",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/es-AR.json b/app/soapbox/locales/es-AR.json
index eb56879a0..8590459b6 100644
--- a/app/soapbox/locales/es-AR.json
+++ b/app/soapbox/locales/es-AR.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} marcó tu estado como favorito",
   "notification.follow": "{name} te empezó a seguir",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/es.json b/app/soapbox/locales/es.json
index c4a3e99cb..9c8e6432a 100644
--- a/app/soapbox/locales/es.json
+++ b/app/soapbox/locales/es.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} marcó tu estado como favorito",
   "notification.follow": "{name} te empezó a seguir",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/et.json b/app/soapbox/locales/et.json
index 636be30e0..954dbb96c 100644
--- a/app/soapbox/locales/et.json
+++ b/app/soapbox/locales/et.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} märkis su staatuse lemmikuks",
   "notification.follow": "{name} jälgib sind",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/eu.json b/app/soapbox/locales/eu.json
index a16e4332b..3041d4be7 100644
--- a/app/soapbox/locales/eu.json
+++ b/app/soapbox/locales/eu.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name}(e)k zure mezua gogoko du",
   "notification.follow": "{name}(e)k jarraitzen zaitu",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/fa.json b/app/soapbox/locales/fa.json
index b9e9da44d..2b65e24c7 100644
--- a/app/soapbox/locales/fa.json
+++ b/app/soapbox/locales/fa.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "‫{name}‬ نوشتهٔ شما را پسندید",
   "notification.follow": "‫{name}‬ پیگیر شما شد",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/fi.json b/app/soapbox/locales/fi.json
index d806c2fc6..b8896b3f9 100644
--- a/app/soapbox/locales/fi.json
+++ b/app/soapbox/locales/fi.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} tykkäsi tilastasi",
   "notification.follow": "{name} seurasi sinua",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/fr.json b/app/soapbox/locales/fr.json
index 373c89021..3c7d73308 100644
--- a/app/soapbox/locales/fr.json
+++ b/app/soapbox/locales/fr.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} a ajouté à ses favoris :",
   "notification.follow": "{name} vous suit",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/ga.json b/app/soapbox/locales/ga.json
index eb21a107f..0cf874018 100644
--- a/app/soapbox/locales/ga.json
+++ b/app/soapbox/locales/ga.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} favorited your post",
   "notification.follow": "{name} followed you",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/gl.json b/app/soapbox/locales/gl.json
index 3ea35cb9f..95ee2cbbc 100644
--- a/app/soapbox/locales/gl.json
+++ b/app/soapbox/locales/gl.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} marcou como favorito o seu estado",
   "notification.follow": "{name} está a seguila",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/he.json b/app/soapbox/locales/he.json
index 66d636c1d..7b20f137a 100644
--- a/app/soapbox/locales/he.json
+++ b/app/soapbox/locales/he.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} שלח לך הודעה",
+  "notification.pleroma:chat_mention": "{name} שלח לך הודעה",
   "notification.favourite": "הפוסט שלך חובב על ידי {name}",
   "notification.follow": "{name} במעקב אחרייך",
   "notification.follow_request": "{name} ביקש לעקוב אחריך",
diff --git a/app/soapbox/locales/hi.json b/app/soapbox/locales/hi.json
index cbc84692c..26deafba5 100644
--- a/app/soapbox/locales/hi.json
+++ b/app/soapbox/locales/hi.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} favorited your post",
   "notification.follow": "{name} followed you",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/hr.json b/app/soapbox/locales/hr.json
index ca5451121..68e3fe114 100644
--- a/app/soapbox/locales/hr.json
+++ b/app/soapbox/locales/hr.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} je lajkao tvoj status",
   "notification.follow": "{name} te sada slijedi",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/hu.json b/app/soapbox/locales/hu.json
index 0d5b56411..032c16b8d 100644
--- a/app/soapbox/locales/hu.json
+++ b/app/soapbox/locales/hu.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} kedvencnek jelölte egy tülködet",
   "notification.follow": "{name} követ téged",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/hy.json b/app/soapbox/locales/hy.json
index c2638e2d4..cabc205ad 100644
--- a/app/soapbox/locales/hy.json
+++ b/app/soapbox/locales/hy.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} հավանեց թութդ",
   "notification.follow": "{name} սկսեց հետեւել քեզ",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/id.json b/app/soapbox/locales/id.json
index 904f73cc5..6d86cbb8c 100644
--- a/app/soapbox/locales/id.json
+++ b/app/soapbox/locales/id.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} menyukai status anda",
   "notification.follow": "{name} mengikuti anda",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/io.json b/app/soapbox/locales/io.json
index f85f36a5a..5c351dc99 100644
--- a/app/soapbox/locales/io.json
+++ b/app/soapbox/locales/io.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} favorizis tua mesajo",
   "notification.follow": "{name} sequeskis tu",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/it.json b/app/soapbox/locales/it.json
index 6972de6c1..8f03e6a7d 100644
--- a/app/soapbox/locales/it.json
+++ b/app/soapbox/locales/it.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} oggi festeggia il compleanno",
   "notification.birthday.more": "{count} e {count, plural, un {friend} più {friends}}",
   "notification.birthday_plural": "{name} e {more} oggi festeggiano il compleanno",
-  "notification.chat_mention": "{name} ti ha spedito un messaggio",
+  "notification.pleroma:chat_mention": "{name} ti ha spedito un messaggio",
   "notification.favourite": "{name} ha apprezzato il contenuto",
   "notification.follow": "{name} adesso ti segue",
   "notification.follow_request": "{name} ha chiesto di seguirti",
diff --git a/app/soapbox/locales/ja.json b/app/soapbox/locales/ja.json
index 931c89326..c40c65de3 100644
--- a/app/soapbox/locales/ja.json
+++ b/app/soapbox/locales/ja.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name}さんがあなたにメッセージを送りました",
+  "notification.pleroma:chat_mention": "{name}さんがあなたにメッセージを送りました",
   "notification.favourite": "{name}さんがあなたの投稿をお気に入りに登録しました",
   "notification.follow": "{name}さんにフォローされました",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/ka.json b/app/soapbox/locales/ka.json
index 950b4e69c..d0146522d 100644
--- a/app/soapbox/locales/ka.json
+++ b/app/soapbox/locales/ka.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name}-მა თქვენი სტატუსი აქცია ფავორიტად",
   "notification.follow": "{name} გამოგყვათ",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/kk.json b/app/soapbox/locales/kk.json
index 40f4f25ac..8620007e2 100644
--- a/app/soapbox/locales/kk.json
+++ b/app/soapbox/locales/kk.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} жазбаңызды таңдаулыға қосты",
   "notification.follow": "{name} сізге жазылды",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/ko.json b/app/soapbox/locales/ko.json
index 55bc1e1bb..25b771202 100644
--- a/app/soapbox/locales/ko.json
+++ b/app/soapbox/locales/ko.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name}님이 즐겨찾기 했습니다",
   "notification.follow": "{name}님이 나를 팔로우 했습니다",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/lt.json b/app/soapbox/locales/lt.json
index ff62cbf65..27c086ab8 100644
--- a/app/soapbox/locales/lt.json
+++ b/app/soapbox/locales/lt.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} favorited your post",
   "notification.follow": "{name} followed you",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/lv.json b/app/soapbox/locales/lv.json
index c97bca375..51352659c 100644
--- a/app/soapbox/locales/lv.json
+++ b/app/soapbox/locales/lv.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} favorited your post",
   "notification.follow": "{name} followed you",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/mk.json b/app/soapbox/locales/mk.json
index 8d017fb27..c8919a214 100644
--- a/app/soapbox/locales/mk.json
+++ b/app/soapbox/locales/mk.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} favorited your post",
   "notification.follow": "{name} followed you",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/ms.json b/app/soapbox/locales/ms.json
index dc75e0a32..b6e701fcd 100644
--- a/app/soapbox/locales/ms.json
+++ b/app/soapbox/locales/ms.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} favorited your post",
   "notification.follow": "{name} followed you",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/nl.json b/app/soapbox/locales/nl.json
index 47795ef3d..0e3ea550c 100644
--- a/app/soapbox/locales/nl.json
+++ b/app/soapbox/locales/nl.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} voegde jouw toot als favoriet toe",
   "notification.follow": "{name} volgt jou nu",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/nn.json b/app/soapbox/locales/nn.json
index 26e4c3134..62adfaba4 100644
--- a/app/soapbox/locales/nn.json
+++ b/app/soapbox/locales/nn.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} likte din status",
   "notification.follow": "{name} fulgte deg",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/no.json b/app/soapbox/locales/no.json
index fe86be051..827d16b33 100644
--- a/app/soapbox/locales/no.json
+++ b/app/soapbox/locales/no.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} likte din status",
   "notification.follow": "{name} fulgte deg",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/oc.json b/app/soapbox/locales/oc.json
index 64b471abc..6ba11c35d 100644
--- a/app/soapbox/locales/oc.json
+++ b/app/soapbox/locales/oc.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} a ajustat a sos favorits",
   "notification.follow": "{name} vos sèc",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/pl.json b/app/soapbox/locales/pl.json
index 1184a91f6..6e31746f7 100644
--- a/app/soapbox/locales/pl.json
+++ b/app/soapbox/locales/pl.json
@@ -749,7 +749,7 @@
   "notification.birthday": "{name} ma dziś urodziny",
   "notification.birthday.more": "{count} {count, plural, one {znajomy} other {więcej znajomych}}",
   "notification.birthday_plural": "{name} i {more} mają dziś urodziny",
-  "notification.chat_mention": "{name} wysłał(a) Ci wiadomośść",
+  "notification.pleroma:chat_mention": "{name} wysłał(a) Ci wiadomośść",
   "notification.favourite": "{name} dodał(a) Twój wpis do ulubionych",
   "notification.follow": "{name} zaczął(-ęła) Cię śledzić",
   "notification.follow_request": "{name} poprosił(a) Cię o możliwość śledzenia",
diff --git a/app/soapbox/locales/pt-BR.json b/app/soapbox/locales/pt-BR.json
index f0b0a19df..76b2e4b84 100644
--- a/app/soapbox/locales/pt-BR.json
+++ b/app/soapbox/locales/pt-BR.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} adicionou a sua postagem aos favoritos",
   "notification.follow": "{name} te seguiu",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/pt.json b/app/soapbox/locales/pt.json
index 4cc86daad..5c8c51bb9 100644
--- a/app/soapbox/locales/pt.json
+++ b/app/soapbox/locales/pt.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} enviou-te uma mensagem",
+  "notification.pleroma:chat_mention": "{name} enviou-te uma mensagem",
   "notification.favourite": "{name} gostou desta publicação",
   "notification.follow": "{name} começou a seguir-te",
   "notification.follow_request": "{name} pediu para te seguir",
diff --git a/app/soapbox/locales/ro.json b/app/soapbox/locales/ro.json
index 2f49f24ce..488ce486a 100644
--- a/app/soapbox/locales/ro.json
+++ b/app/soapbox/locales/ro.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} a adăugat statusul tău la favorite",
   "notification.follow": "{name} te urmărește",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/ru.json b/app/soapbox/locales/ru.json
index b4d0b3e2d..90b3827b0 100644
--- a/app/soapbox/locales/ru.json
+++ b/app/soapbox/locales/ru.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} понравился Ваш статус",
   "notification.follow": "{name} подписался (-лась) на вас",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/sk.json b/app/soapbox/locales/sk.json
index 7a81a02c4..023f86526 100644
--- a/app/soapbox/locales/sk.json
+++ b/app/soapbox/locales/sk.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} si obľúbil/a tvoj príspevok",
   "notification.follow": "{name} ťa začal/a následovať",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/sl.json b/app/soapbox/locales/sl.json
index d1710325d..30a90754b 100644
--- a/app/soapbox/locales/sl.json
+++ b/app/soapbox/locales/sl.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} je vzljubil/a vaš status",
   "notification.follow": "{name} vam sledi",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/sq.json b/app/soapbox/locales/sq.json
index 1c0a23d21..494b9ce8d 100644
--- a/app/soapbox/locales/sq.json
+++ b/app/soapbox/locales/sq.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} parapëlqeu gjendjen tuaj",
   "notification.follow": "{name} zuri t’ju ndjekë",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/sr-Latn.json b/app/soapbox/locales/sr-Latn.json
index ccf0c8ef1..952e0d360 100644
--- a/app/soapbox/locales/sr-Latn.json
+++ b/app/soapbox/locales/sr-Latn.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} je stavio Vaš status kao omiljeni",
   "notification.follow": "{name} Vas je zapratio",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/sr.json b/app/soapbox/locales/sr.json
index 140a2738c..b9e8d84ac 100644
--- a/app/soapbox/locales/sr.json
+++ b/app/soapbox/locales/sr.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} је ставио/ла Ваш статус као омиљени",
   "notification.follow": "{name} Вас је запратио/ла",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/sv.json b/app/soapbox/locales/sv.json
index a57d57e8f..dedaa4651 100644
--- a/app/soapbox/locales/sv.json
+++ b/app/soapbox/locales/sv.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} favoriserade din status",
   "notification.follow": "{name} följer dig",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/ta.json b/app/soapbox/locales/ta.json
index 69c44f84f..536bff964 100644
--- a/app/soapbox/locales/ta.json
+++ b/app/soapbox/locales/ta.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} ஆர்வம் கொண்டவர், உங்கள் நிலை",
   "notification.follow": "{name} நீங்கள் தொடர்ந்து வந்தீர்கள்",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/te.json b/app/soapbox/locales/te.json
index 6b34989f9..1e1311a4b 100644
--- a/app/soapbox/locales/te.json
+++ b/app/soapbox/locales/te.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} మీ స్టేటస్ ను ఇష్టపడ్డారు",
   "notification.follow": "{name} మిమ్మల్ని అనుసరిస్తున్నారు",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/th.json b/app/soapbox/locales/th.json
index c509dd4a3..cfc6d8396 100644
--- a/app/soapbox/locales/th.json
+++ b/app/soapbox/locales/th.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} ได้ชื่นชอบสถานะของคุณ",
   "notification.follow": "{name} ได้ติดตามคุณ",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/tr.json b/app/soapbox/locales/tr.json
index 45c7c02b0..2cb0e84dc 100644
--- a/app/soapbox/locales/tr.json
+++ b/app/soapbox/locales/tr.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} senin durumunu favorilere ekledi",
   "notification.follow": "{name} seni takip ediyor",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/uk.json b/app/soapbox/locales/uk.json
index bf601a95b..fb950161d 100644
--- a/app/soapbox/locales/uk.json
+++ b/app/soapbox/locales/uk.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} вподобав(-ла) ваш допис",
   "notification.follow": "{name} підписався(-лась) на Вас",
   "notification.follow_request": "{name} відправив(-ла) запит на підписку",
diff --git a/app/soapbox/locales/zh-CN.json b/app/soapbox/locales/zh-CN.json
index 0ec6a2e0f..7a5aeb1f1 100644
--- a/app/soapbox/locales/zh-CN.json
+++ b/app/soapbox/locales/zh-CN.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} 回复了你",
+  "notification.pleroma:chat_mention": "{name} 回复了你",
   "notification.favourite": "{name} 赞了你的帖文",
   "notification.follow": "{name} 开始关注你",
   "notification.follow_request": "{name} 请求关注你",
diff --git a/app/soapbox/locales/zh-HK.json b/app/soapbox/locales/zh-HK.json
index b163f6675..65462c72f 100644
--- a/app/soapbox/locales/zh-HK.json
+++ b/app/soapbox/locales/zh-HK.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} 收藏了你的文章",
   "notification.follow": "{name} 開始關注你",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/locales/zh-TW.json b/app/soapbox/locales/zh-TW.json
index 5eade39d5..09ba5c840 100644
--- a/app/soapbox/locales/zh-TW.json
+++ b/app/soapbox/locales/zh-TW.json
@@ -706,7 +706,7 @@
   "notification.birthday": "{name} has a birthday today",
   "notification.birthday.more": "{count} more {count, plural, one {friend} other {friends}}",
   "notification.birthday_plural": "{name} and {more} have birthday today",
-  "notification.chat_mention": "{name} sent you a message",
+  "notification.pleroma:chat_mention": "{name} sent you a message",
   "notification.favourite": "{name} 把你的嘟文加入了最愛",
   "notification.follow": "{name} 關注了你",
   "notification.follow_request": "{name} has requested to follow you",
diff --git a/app/soapbox/normalizers/notification.ts b/app/soapbox/normalizers/notification.ts
index 2bac3f2b3..9b34278b6 100644
--- a/app/soapbox/normalizers/notification.ts
+++ b/app/soapbox/normalizers/notification.ts
@@ -11,19 +11,6 @@ import {
 
 import type { Account, Status, EmbeddedEntity } from 'soapbox/types/entities';
 
-export type NotificationType =
-  'follow'
-  | 'follow_request'
-  | 'mention'
-  | 'reblog'
-  | 'favourite'
-  | 'poll'
-  | 'status'
-  | 'move'
-  | 'pleroma:chat_mention'
-  | 'pleroma:emoji_reaction'
-  | 'user_approved';
-
 // https://docs.joinmastodon.org/entities/notification/
 export const NotificationRecord = ImmutableRecord({
   account: null as EmbeddedEntity<Account>,
@@ -33,7 +20,7 @@ export const NotificationRecord = ImmutableRecord({
   id: '',
   status: null as EmbeddedEntity<Status>,
   target: null as EmbeddedEntity<Account>, // move
-  type: '' as NotificationType | '',
+  type: '',
   total_count: null as number | null, // grouped notifications
 });
 
diff --git a/app/soapbox/service_worker/web_push_locales.js b/app/soapbox/service_worker/web_push_locales.js
index 1265f3cfa..172bbe4b5 100644
--- a/app/soapbox/service_worker/web_push_locales.js
+++ b/app/soapbox/service_worker/web_push_locales.js
@@ -20,6 +20,12 @@ filenames.forEach(filename => {
     'notification.mention': full['notification.mention'] || '',
     'notification.reblog': full['notification.reblog'] || '',
     'notification.poll': full['notification.poll'] || '',
+    'notification.status': full['notification.status'] || '',
+    'notification.move': full['notification.move'] || '',
+    'notification.user_approved': full['notification.user_approved'] || '',
+
+    'notification.pleroma:chat_mention': full['notification.pleroma:chat_mention'] || '',
+    'notification.pleroma:emoji_reaction': full['notification.pleroma:emoji_reaction'] || '',
 
     'status.show_more': full['status.show_more'] || '',
     'status.reblog': full['status.reblog'] || '',
diff --git a/app/soapbox/utils/notification.ts b/app/soapbox/utils/notification.ts
new file mode 100644
index 000000000..635d16f29
--- /dev/null
+++ b/app/soapbox/utils/notification.ts
@@ -0,0 +1,25 @@
+/** Notification types known to Soapbox. */
+const NOTIFICATION_TYPES = [
+  'follow',
+  'follow_request',
+  'mention',
+  'reblog',
+  'favourite',
+  'poll',
+  'status',
+  'move',
+  'pleroma:chat_mention',
+  'pleroma:emoji_reaction',
+  'user_approved',
+] as const;
+
+type NotificationType = typeof NOTIFICATION_TYPES[number];
+
+/** Ensure the Notification is a valid, known type. */
+const validType = (type: string): type is NotificationType => NOTIFICATION_TYPES.includes(type as any);
+
+export {
+  NOTIFICATION_TYPES,
+  NotificationType,
+  validType,
+};