firefox-meta-press: init

pkgs/by-name/firefox-meta-press/package.nix

@@ -0,0 +1,29 @@
+{
+  wrapFirefox,
+  firefox-devedition-unwrapped,
+  fetchFirefoxAddon,
+  meta-press,
+}:
+
+let
+  # workaround for https://github.com/NixOS/nixpkgs/issues/273509
+  # TODO: remove when nixpkgs rev is updated
+  firefox-unwrapped = (
+    firefox-devedition-unwrapped.overrideAttrs (previousAttrs: {
+      passthru = previousAttrs.passthru // {
+        requireSigning = false;
+        allowAddonSideload = true;
+      };
+    })
+  );
+in
+wrapFirefox firefox-unwrapped {
+  nixExtensions = [
+    (
+      (fetchFirefoxAddon {
+        name = "meta-press-es"; # Has to be unique!
+        src = "${meta-press}/firefox_addon.xpi";
+      })
+    )
+  ];
+}