diff --git a/modules/firefox.nix b/modules/firefox.nix
index 8d72c86..c8d8dc9 100644
--- a/modules/firefox.nix
+++ b/modules/firefox.nix
@@ -31,19 +31,19 @@
         in listToAttrs [
           (extension "tree-style-tab" "treestyletab@piro.sakura.ne.jp")
           (extension "ublock-origin" "uBlock0@raymondhill.net")
-          # (extension "bitwarden-password-manager" "{446900e4-71c2-419f-a6a7-df9c091e268b}")
-          # (extension "tabliss" "extension@tabliss.io")
-          # (extension "umatrix" "uMatrix@raymondhill.net")
-          # (extension "libredirect" "7esoorv3@alefvanoon.anonaddy.me")
+          (extension "umatrix" "uMatrix@raymondhill.net")
+          (extension "libredirect" "7esoorv3@alefvanoon.anonaddy.me")
           (extension "clearurls" "{74145f27-f039-47ce-a470-a662b129930a}")
           (extension "mark-my-search" "{3c87dcad-dbbd-4be1-b07b-b6d0739b0aec}")
+	  (extension "vimium" "{d7742d87-e61d-4b78-b8a1-b469842139fa}")
+	  (extension "beautiful-alpen-blue" "{b96cf6da-f1b1-4b9d-9e69-98e7da9dd7c3}")
         ];
         # To add additional extensions, find it on addons.mozilla.org, find
         # the short ID in the url (like https://addons.mozilla.org/en-US/firefox/addon/!SHORT_ID!/)
         # Then, download the XPI by filling it in to the install_url template, unzip it,
         # run `jq .browser_specific_settings.gecko.id manifest.json` or
         # `jq .applications.gecko.id manifest.json` to get the UUID
-        # mir note: or just go to about:debugging#/runtime/this-firefox
+        # mir note: or just go to about:debugging#/runtime/this-firefox and copy the first field "Extension ID"
     };
 
     profiles = {