I have this problem with Heron 32-bit. For me, the Firefox process doesn't always die when you quit Firefox. I have to use sysmon to kill it before I can use it again. It could be associated with Flash 10, as I have that installed, and it usually happens when I've used Flash during the session.
-- can't start firefox, error "firefox already running" window tab not visible, needed to end process from sys mon then reopen - workaround https://bugs.launchpad.net/bugs/77625 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