The official link: https://www.x.org/releases/X11R7.6/doc/xorg-docs/specs/ICCCM/icccm.html#pop_up_windows
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1625846 Title: Xmir -rootless: Firefox menus pop up then close right away To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1625846/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs