I had experienced this today and looked into it a little when I found this bug report already here. Disabling all plugins and extensions, this behavior still happens, and I have seen it on every Karmic machine I have tried. To me, it seems to be an issue with startup notification, as eventually the mouse cursor does return to normal (there is a timeout for startup notification) but clearly this is only happening with firefox. I also understand the sentiment of the first reporter who found it annoying.
-- [karmic] final, when launching firefox, mouse cursor spins forever https://bugs.launchpad.net/bugs/469752 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