diff --git a/docs/options.md b/docs/options.md
index c0a82da7..12cc334c 100644
--- a/docs/options.md
+++ b/docs/options.md
@@ -72,9 +72,11 @@
     --no-check-certificate      Disable HTTPS certificate validation
 
 ## Configuration Options:
+    -o, --option KEY=VALUE      Additional options. Example: -o browser=firefox
     -c, --config FILE           Additional configuration files
-    -o, --option OPT            Additional '<key>=<value>' option values
-    --ignore-config             Do not read default configuration files
+    --config-yaml FILE          Additional configuration files in YAML format
+    --config-toml FILE          Additional configuration files in TOML format
+    --config-ignore             Do not read default configuration files
 
 ## Authentication Options:
     -u, --username USER         Username to login with
diff --git a/gallery_dl/__init__.py b/gallery_dl/__init__.py
index abcbc075..5593b0e4 100644
--- a/gallery_dl/__init__.py
+++ b/gallery_dl/__init__.py
@@ -40,10 +40,12 @@ def main():
         # configuration
         if args.load_config:
             config.load()
-        if args.cfgfiles:
-            config.load(args.cfgfiles, strict=True)
-        if args.yamlfiles:
-            config.load(args.yamlfiles, strict=True, fmt="yaml")
+        if args.configs_json:
+            config.load(args.configs_json, strict=True)
+        if args.configs_yaml:
+            config.load(args.configs_yaml, strict=True, fmt="yaml")
+        if args.configs_toml:
+            config.load(args.configs_toml, strict=True, fmt="toml")
         if args.filename:
             filename = args.filename
             if filename == "/O":
diff --git a/gallery_dl/config.py b/gallery_dl/config.py
index 819347da..c4c261e0 100644
--- a/gallery_dl/config.py
+++ b/gallery_dl/config.py
@@ -58,6 +58,17 @@ def load(files=None, strict=False, fmt="json"):
         except ImportError:
             log.error("Could not import 'yaml' module")
             return
+    elif fmt == "toml":
+        try:
+            import tomllib
+            load = tomllib.loads
+        except ImportError:
+            try:
+                import toml
+                load = toml.loads
+            except ImportError:
+                log.error("Could not import 'toml' module")
+                return
     else:
         load = util.json_loads
 
diff --git a/gallery_dl/option.py b/gallery_dl/option.py
index 37e9f5f3..dcdc3ef0 100644
--- a/gallery_dl/option.py
+++ b/gallery_dl/option.py
@@ -320,15 +320,26 @@ def build_parser():
     )
 
     configuration = parser.add_argument_group("Configuration Options")
+    configuration.add_argument(
+        "-o", "--option",
+        dest="options", metavar="KEY=VALUE", action=ParseAction, default=[],
+        help=("Additional options. "
+              "Example: -o browser=firefox")   ,
+    )
     configuration.add_argument(
         "-c", "--config",
-        dest="cfgfiles", metavar="FILE", action="append",
+        dest="configs_json", metavar="FILE", action="append",
         help="Additional configuration files",
     )
     configuration.add_argument(
         "--config-yaml",
-        dest="yamlfiles", metavar="FILE", action="append",
-        help=argparse.SUPPRESS,
+        dest="configs_yaml", metavar="FILE", action="append",
+        help="Additional configuration files in YAML format",
+    )
+    configuration.add_argument(
+        "--config-toml",
+        dest="configs_toml", metavar="FILE", action="append",
+        help="Additional configuration files in TOML format",
     )
     configuration.add_argument(
         "--config-ignore",
@@ -340,11 +351,6 @@ def build_parser():
         dest="load_config", action="store_false",
         help=argparse.SUPPRESS,
     )
-    configuration.add_argument(
-        "-o", "--option",
-        dest="options", metavar="OPT", action=ParseAction, default=[],
-        help="Additional '<key>=<value>' option values",
-    )
 
     authentication = parser.add_argument_group("Authentication Options")
     authentication.add_argument(