It happens always for me, since some upgrades 1 or 2 months ago. I usually exit firefox closing the main window, then "Clear private data" window pops up but after closing it firefox is still running. I have to kill firefox brutally from terminal to open it again.
It doesn't depend on specific webpages. -- Firefox doesn't always shut down properly https://bugs.launchpad.net/bugs/252151 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