support selecting a domain for '--cookies-from-browser'

for example 'gallery-dl --cookies-from-browser firefox/twitter.com'

docs/configuration.rst

@@ -446,12 +446,13 @@ Description
       * The optional second entry is a profile name or an absolute path to a profile directory
       * The optional third entry is the keyring to retrieve passwords for decrypting cookies from
       * The optional fourth entry is a (Firefox) container name (``"none"`` for only cookies with no container)
+      * The optional fifth entry is the domain to extract cookies for. Prefix it with a dot ``.`` to include cookies for subdomains. Has no effect when also specifying a container.
 
       .. code:: json
 
         ["firefox"]
         ["firefox", null, null, "Personal"]
-        ["chromium", "Private", "kwallet"]
+        ["chromium", "Private", "kwallet", null, ".twitter.com"]
 
 
 extractor.*.cookies-update

docs/options.md

@@ -19,11 +19,12 @@
     --clear-cache MODULE        Delete cached login sessions, cookies, etc. for
                                 MODULE (ALL to delete everything)
     --cookies FILE              File to load additional cookies from
-    --cookies-from-browser BROWSER[+KEYRING][:PROFILE][::CONTAINER]
+    --cookies-from-browser BROWSER[/DOMAIN][+KEYRING][:PROFILE][::CONTAINER]
                                 Name of the browser to load cookies from, with
-                                optional keyring name prefixed with '+', profile
-                                prefixed with ':', and container prefixed with
-                                '::' ('none' for no container)
+                                optional domain prefixed with '/', keyring name
+                                prefixed with '+', profile prefixed with ':',
+                                and container prefixed with '::' ('none' for no
+                                container)
 
 ## Output Options:
     -q, --quiet                 Activate quiet mode