Firefox / Thunderbird permissions requester does not work

I’ve got a weird problem where if I need to allow permissions for logins in Firefox the pop-up requester looks fine but when I LMB click on “Allow” (or Cancel) nothing happens. I just now tried to add the Nextcloud Filelink add-on to Thunderbird and got the same thing. I can’t add the add-on because a click on “Add” does nothing and the permissions popup just stays there until I close that tab. Has anyone else seen this or have a solution?

I am using an uptodate Plasma desktop.

:+1: Welcome to Manjaro! :+1:

  1. What are you doing exactly?

  2. Does this also happen when you start Firefox with the command:

    firefox --safe-mode