My error. I had an unnoticed browser window open on another virtual desktop. The Flash plug-in prompt was active there, which obviously prevented it to be shown on any other browser window. Sorry for the wrong alert. Marking the bug as invalid.
** Changed in: firefox-3.5 (Ubuntu) Status: New => Invalid -- [Karmic] Not prompted to install Flash plugin in Firefox https://bugs.launchpad.net/bugs/440945 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