Comment #2 on issue 343 by h2oz7v: XMonad.Prompt.RunOrRaise doesnt always detect an already running program http://code.google.com/p/xmonad/issues/detail?id=343 1. xprop output Firefox window one: https://gist.github.com/8e5b99edba20817873e6 Firefox window two: https://gist.github.com/f1fbd285158ecf471268 (ooo ascii icons!) 2. Firefox profiles Wasn't sure where to look for this. I only have one profile in my home directory: /home/user/.mozilla/firefox/7y6oa6fw.default If I look in about:cache for both windows, they both mention: 7y6oa6fw.default 3. "It was working all along" Nope, it definitely opens up a new window (they open side by side if launched within the same workspace), though only one process is running: $ pgrep -lf firefox 3477 firefox -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this issue. You may adjust your issue notification preferences at: http://code.google.com/hosting/settings