mozilla-launcher is loading firefox with a normal user's prefs if that normal user already has a firefox window open. Reproducible: Always Steps to Reproduce: 1. #firefox & (runs firefox as normal user) or run firefox from with your wm or kde or gnome 2. #xhost local:host 3. #su 4. #firefox & (runs firefox as root) Actual Results: Firefox will open with the normal user's prefs! Expected Results: Firefox should open with root's prefs! Probably a mozilla-launcher problem. It's a nasty one though IMHO.
Any attempts so far at fixing this bug?
It's not a bug. You're using "su" which maintains the user's environment and HOME setting. Use "su -" instead which works.