diff --git a/modules/firefox.nix b/modules/firefox.nix
index 9211aba..c2b604b 100644
--- a/modules/firefox.nix
+++ b/modules/firefox.nix
@@ -31,12 +31,11 @@
         in listToAttrs [
           # (extension "tree-style-tab" "treestyletab@piro.sakura.ne.jp")
           (extension "ublock-origin" "uBlock0@raymondhill.net")
-          # (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}")
+	  (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!/)