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Diffstat (limited to 'pkgs/applications/networking/browsers/firefox/wrapper.nix')
-rw-r--r--pkgs/applications/networking/browsers/firefox/wrapper.nix2
1 files changed, 2 insertions, 0 deletions
diff --git a/pkgs/applications/networking/browsers/firefox/wrapper.nix b/pkgs/applications/networking/browsers/firefox/wrapper.nix
index 0ef5233ff6b..aa6f7da503f 100644
--- a/pkgs/applications/networking/browsers/firefox/wrapper.nix
+++ b/pkgs/applications/networking/browsers/firefox/wrapper.nix
@@ -91,6 +91,8 @@ let
       # and an extid attribute
       extensions = if nameArray != (lib.unique nameArray) then
         throw "Firefox addon name needs to be unique"
+      else if ! (lib.hasSuffix "esr" browser.name) then
+        throw "Nix addons are only supported in Firefox ESR"
       else builtins.map (a:
         if ! (builtins.hasAttr "extid" a) then
         throw "nixExtensions has an invalid entry. Missing extid attribute. Please use fetchfirefoxaddon"