[mangafire] add support (#7064 #7701)

docs/configuration.rst

@@ -3808,6 +3808,17 @@ Description
     List of acceptable content ratings for returned chapters.
 
 
+extractor.mangafire.manga.lang
+------------------------------
+Type
+    ``string``
+Default
+    ``"en"``
+Description
+    `ISO 639-1 <https://en.wikipedia.org/wiki/ISO_639-1>`__
+    language code selecting which chapters to download.
+
+
 extractor.mangapark.source
 --------------------------
 Type

docs/gallery-dl.conf

@@ -523,6 +523,10 @@
             "lang": null,
             "ratings": ["safe", "suggestive", "erotica", "pornographic"]
         },
+        "mangafire":
+        {
+            "lang": "en"
+        },
         "mangoxo":
         {
             "username": "",

docs/supportedsites.md

@@ -607,6 +607,12 @@ Consider all listed sites to potentially be NSFW.
     <td>Authors, Chapters, Covers, Updates Feed, Library, MDLists, Manga</td>
     <td>Supported</td>
 </tr>
+<tr id="mangafire" title="mangafire">
+    <td>MangaFire</td>
+    <td>https://mangafire.to/</td>
+    <td>Chapters, Manga</td>
+    <td></td>
+</tr>
 <tr id="mangapark" title="mangapark">
     <td>MangaPark</td>
     <td>https://mangapark.net/</td>