I'm on elementary OS (based on Ubuntu 18.04) and also experience this issue. As Tigran mentioned, disabling the Title Bar functions as a workaround.
I presume the Client Side Decoration feature is what introduced this bug in the first place. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1603430 Title: Firefox dropdowns in wrong location To manage notifications about this bug go to: https://bugs.launchpad.net/linuxmint/+bug/1603430/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
