Changing the timestamp to CurrentTime from X instead of the system current time fixes the problem for me. I don't know if this is the correct solution for Qt, but it's working for me.
** Patch added: "change from system time to X11 CurrentTime" https://bugs.launchpad.net/libdbusmenu-qt/+bug/1035755/+attachment/3484292/+files/fixdbuscurrenttime.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1035755 Title: [firefox] Extension causes context/drop down menus to disappear To manage notifications about this bug go to: https://bugs.launchpad.net/libdbusmenu-qt/+bug/1035755/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs