I have a Sony Vaio Z13 and it happens with the intel card and the nvidia card. I found this:
https://wiki.archlinux.org/index.php/Compiz_Troubleshooting#Context_menu_in_applications_.28firefox.2C_....3F.29_disappears_on_mouseover But it doen't helped for me. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/872207 Title: When Firefox is running in Unity, drop-down menus sometime close when opened To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/872207/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
