I have now figured out that the "ISACTIVE:true" in .xsession-errors comes from the "Nagios Checker" firefox plugin, when focusing/unfocusing the main area of Firefox. I have disabled that plugin and will try to see if that removes the issue.
To clarify: I suspect there is a bug somewhere in Unity, that is just triggered by this. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/781653 Title: Mouse is sometimes grabbed, making only keyboard interaction possible -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
