I can confirm this problem. Almost every time I close a page with a flash video or hit the "back" button in firefox, the browser crashes and becomes unresponsive. I installed the flash 9 plugin trough the web- installer in firefox.
"about:plugins" shows: File name: libflashplayer.so Shockwave Flash 9.0 r31 -- Firefox hangs when closing a page with flash running https://bugs.launchpad.net/bugs/98688 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs