diff --git a/docs/configuration.rst b/docs/configuration.rst
index 83972e23..08b58dad 100644
--- a/docs/configuration.rst
+++ b/docs/configuration.rst
@@ -6963,6 +6963,16 @@ Description
     Enable `Data Saver` mode and download lower quality versions of chapters.
 
 
+extractor.weebdex.manga.lang
+----------------------------
+Type
+    ``string``
+Default
+    ``"en"``
+Description
+    |ISO 639-1| code selecting which chapters to download.
+
+
 extractor.weibo.gifs
 --------------------
 Type
diff --git a/docs/gallery-dl.conf b/docs/gallery-dl.conf
index b2302aa9..addbcf05 100644
--- a/docs/gallery-dl.conf
+++ b/docs/gallery-dl.conf
@@ -967,7 +967,8 @@
         },
         "weebdex":
         {
-            "data-saver": false
+            "data-saver": false,
+            "lang"      : "en"
         },
         "weibo":
         {
diff --git a/gallery_dl/extractor/weebdex.py b/gallery_dl/extractor/weebdex.py
index 4be7ae24..4e36e7ff 100644
--- a/gallery_dl/extractor/weebdex.py
+++ b/gallery_dl/extractor/weebdex.py
@@ -85,17 +85,21 @@ class WeebdexChapterExtractor(WeebdexBase, ChapterExtractor):
 class WeebdexMangaExtractor(WeebdexBase, MangaExtractor):
     """Extractor for weebdex manga"""
     chapterclass = WeebdexChapterExtractor
-    pattern = BASE_PATTERN + r"/title/(\w+)"
+    reverse = False
+    pattern = BASE_PATTERN + r"/title/(\w+)(?:/[^/?#]+/?\?([^#]+))?"
     example = "https://weebdex.org/title/ID/SLUG"
 
     def chapters(self, page):
-        mid = self.groups[0]
-        url = f"{self.root_api}/manga/{mid}/chapters"
-        params = {
-            "limit": 100,
-            "order": "asc" if self.config("chapter-reverse") else "desc",
-        }
+        mid, qs = self.groups
 
+        params = text.parse_query(qs)
+        params.setdefault("limit", 100)
+        if "tlang" not in params:
+            params["tlang"] = self.config("lang", "en")
+        if "order" not in params:
+            params["order"] = ("desc" if self.config("chapter-reverse") else
+                               "asc")
+        url = f"{self.root_api}/manga/{mid}/chapters"
         base = self.root + "/chapter/"
         manga = _manga_info(self, mid)
         results = []
diff --git a/test/results/weebdex.py b/test/results/weebdex.py
index f8f7e0be..9c96d1de 100644
--- a/test/results/weebdex.py
+++ b/test/results/weebdex.py
@@ -154,6 +154,7 @@ ___
     "#url"     : "https://weebdex.org/title/3o0icxno26/ani-datta-mono",
     "#class"   : weebdex.WeebdexMangaExtractor,
     "#pattern" : weebdex.WeebdexChapterExtractor.pattern,
+    "#options" : {"lang": None},
     "#count"   : range(120, 300),
 
     "artist"       : ["Matsuda Minoru"],
@@ -211,4 +212,72 @@ ___
     "year"       : 2003,
 },
 
+{
+    "#url"     : "https://weebdex.org/title/3o0icxno26/ani-datta-mono",
+    "#comment" : "'lang' option (#8957)",
+    "#class"   : weebdex.WeebdexMangaExtractor,
+    "#pattern" : weebdex.WeebdexChapterExtractor.pattern,
+    "#options" : {"lang": "vi"},
+    "#count"   : 105,
+
+    "artist"       : ["Matsuda Minoru"],
+    "author"       : ["Matsuda Minoru"],
+    "chapter"      : range(1, 105),
+    "chapter_minor": {"", ".5"},
+    "demographic"  : "seinen",
+    "description"  : str,
+    "language"     : "vi",
+    "manga"        : "Ani Datta Mono",
+    "manga_date"   : "dt:2025-10-09 19:02:04",
+    "manga_id"     : "3o0icxno26",
+    "origin"       : "ja",
+    "status"       : "ongoing",
+    "version"      : int,
+    "volume"       : int,
+    "year"         : 2021,
+    "tags"         : [
+        "genre:Drama",
+        "genre:Horror",
+        "genre:Psychological",
+        "genre:Romance",
+        "genre:Thriller",
+        "theme:Ghosts",
+        "theme:Supernatural",
+    ],
+    "relationships": {
+        "groups"  : [{
+            "id"  : "u7kmeka8v6",
+            "name": "BBB Translation (Big Beaming Bluewhale)",
+        }],
+    },
+},
+
+{
+    "#url"     : "https://weebdex.org/title/3o0icxno26/ani-datta-mono?group=j0fsj3oem3&order=asc",
+    "#comment" : "query parameters (#8957)",
+    "#class"   : weebdex.WeebdexMangaExtractor,
+    "#range"   : "1-3",
+    "#results" : (
+        "https://weebdex.org/chapter/xv2cm9bj1a",
+        "https://weebdex.org/chapter/etoaxmxgcq",
+        "https://weebdex.org/chapter/24ew0mo562",
+    ),
+
+    "artist"       : ["Matsuda Minoru"],
+    "author"       : ["Matsuda Minoru"],
+    "chapter"      : range(1, 3),
+    "language"     : "en",
+    "manga"        : "Ani Datta Mono",
+    "manga_date"   : "dt:2025-10-09 19:02:04",
+    "manga_id"     : "3o0icxno26",
+    "version"      : 1,
+    "volume"       : 1,
+    "relationships": {
+        "groups"  : [{
+            "id"  : "j0fsj3oem3",
+            "name": "Rainbow D Translations",
+        }],
+    },
+},
+
 )