Firefox is already running
after creating a second User Profile I'm always getting "Firefox is already running" message if I try to open a HTML-File from the Filesystem by double-clicking it - default action for HTML-File is open. Looks like Windows (XP SP3) tries to start Firefox a second time instead of using the running instance. I assume file association is somehow wrong - maybe the DDE-Message?
ప్రత్యుత్తరాలన్నీ (1)
If you can solv the problem with another Windows account (pls test create), I recommend the following solution.
http://flatsoft.blogspot.com/2012/01/firefox-is-already-running-not-yet.html