I had the same problem, but sincce 13.0.1. I tried safe mode but it doesn't help.
It happens randomly so I don't know what cause the problem. ** Attachment added: "Troubleshooting Information" https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1026747/+attachment/3228986/+files/firefox.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1026747 Title: 14.0.1: Can't right-click anything; drop-down lists fail To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1026747/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs