It seems that Mouse Gestures addon for Firefox solves the problem. I also experienced this bug in "Zend Studio for Eclipse" (Ubuntu Intrepid Ibex, run on a VMware virtual machine). Heavy loaded machine increases the chances the bug happens.
-- [MASTER] right click (with button release) might activate random popup-menu-item https://bugs.launchpad.net/bugs/187313 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs