That's weird, leaving Firefox 4 open on Arch Linux with, for example, a YouTube page open for a few hours breaks the player and requires the flash process to be

That's weird, leaving Firefox 4 open on Arch Linux with, for example, a YouTube page open for a few hours breaks the player and requires the flash process to be killed and restarted before it works again. IME, it's not a stable piece of software on Linux.