http://www.mattcutts.com/blog/how-to-fix-firefox-is-already-running-error/
How to fix “Firefox is already running” error
http://support.mozilla.com/en-US/forum/1/17012
A copy of Firefox is already open. Only one copy of Firefox can be open at a time.
un izmantot tur atrodamos ieteikumus vai pilnībā (arī user data) izpildīt
http://support.mozilla.com/en-US/kb/Uninstalling+Firefox
un uzinstalēt to no jauna.
pirms 15 gadiem
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