diff --git a/pkgs/ff-sponsorblock/default.nix b/pkgs/ff-sponsorblock/default.nix
new file mode 100644
index 00000000..48d9d968
--- /dev/null
+++ b/pkgs/ff-sponsorblock/default.nix
@@ -0,0 +1,16 @@
+{ lib, buildFirefoxXpiAddon, ... }:
+
+buildFirefoxXpiAddon {
+      pname = "ff-sponsorblock";
+      version = "2.0.13.1";
+      sha256 = "0lq47xnpqqfa8md6l4f0rxxz1cz7hihv5grpqh3vdbvnsc90i6f9";
+      addonId = "{99e84f4-839b-4494-b4ad-12ab59c51fbd}";
+      url = "https://addons.mozilla.org/firefox/downloads/file/3748692/sponsorblock_skip_sponsorships_on_youtube-2.0.13.1-an+fx.xpi";
+
+      meta = with lib; {
+        homepage = "https://sponsor.ajay.app/";
+        description = "Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos.";
+        license = licenses.gpl3;
+        platforms = platforms.all;
+      };
+}