update default User-Agent header to Firefox 128 ESR

docs/configuration.rst

@@ -591,7 +591,7 @@ extractor.*.user-agent
 Type
     ``string``
 Default
-    ``"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0"``
+    ``"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.0"``
 Description
     User-Agent header value to be used for HTTP requests.
 

docs/gallery-dl.conf

@@ -10,7 +10,7 @@
         "proxy": null,
         "skip": true,
 
-        "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0",
+        "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.0",
         "retries": 4,
         "timeout": 30.0,
         "verify": true,

gallery_dl/extractor/common.py

@@ -378,7 +378,7 @@ class Extractor():
             useragent = self.config("user-agent")
             if useragent is None:
                 useragent = ("Mozilla/5.0 (Windows NT 10.0; Win64; x64; "
-                             "rv:109.0) Gecko/20100101 Firefox/115.0")
+                             "rv:128.0) Gecko/20100101 Firefox/128.0")
             elif useragent == "browser":
                 useragent = _browser_useragent()
             headers["User-Agent"] = useragent
@@ -911,13 +911,12 @@ _browser_cookies = {}
 HTTP_HEADERS = {
     "firefox": (
         ("User-Agent", "Mozilla/5.0 ({}; "
-                       "rv:109.0) Gecko/20100101 Firefox/115.0"),
+                       "rv:128.0) Gecko/20100101 Firefox/128.0"),
         ("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,"
-                   "image/avif,image/webp,*/*;q=0.8"),
+                   "image/avif,image/webp,image/png,image/svg+xml,*/*;q=0.8"),
         ("Accept-Language", "en-US,en;q=0.5"),
         ("Accept-Encoding", None),
         ("Referer", None),
-        ("DNT", "1"),
         ("Connection", "keep-alive"),
         ("Upgrade-Insecure-Requests", "1"),
         ("Cookie", None),