Hello, This is not really a bug, rather a side-effect of the fact that Firefox provides its own window decoration and title bar by default, therefore right-clicking at the top will show you Firefox's own context menu rather than GNOME's.
One workaround, which Joseph mentioned, is right-clicking twice. Another approach would be to manually enable the system title bar again. To do so, right-click on the menu bar at the top and then click on 'Customize Toolbar...'. Then, from the newly opened screen, at the bottom left, click on the 'Title Bar' checkbox to enable the system title bar. Now you can right-click on the narrower system title bar at the top for GNOME menu options like the ones mentioned in your bug report. If you'd like Mozilla to reconsider this behaviour, please file a request on their bug tracker at https://bugzilla.mozilla.org upstream. Thanks. ** Changed in: firefox (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2035020 Title: firefox doesn't show the menu entries to move to another workspace To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/2035020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs