(12.10, both KDE and xfce4)
For some reason, Firefox has stopped working when launched from the window manager's launcher. The program runs, but nothing happens. If I try again, I get an error popup that tells me another instance of Firefox is already running, which is true according to
strace the process, it's stuck on a FUTEX_WAIT_PRIVATE system call. Does anybody know how to make that stop happening? (I found an old blog post that claimed it has something to do with assistive technologies being enabled, but on my system they're not as far as I can tell.)
Oh, and I can start Firefox successfully by launching it from an xterm window.