Profile in Use: The Profile Manager appears along with a message that the selected profile is already "in use" when you attempt to start your Mozilla browser.One of the following messages can appear when you start your Mozilla browser if the profile is either "locked" or inaccessible: 8.4 Firefox 3 does not start on Mac OS X 10.3.9 or below.8.3 Firefox 4 or above does not start on Mac OS X 10.4 or PPC Mac OS X 10.5.8.2 Unable to reopen Firefox on Mac OS X after installing and closing it.8.1 Firefox won't run on Mac OS X when home folder is on a network share.
7.3 "/lib/i686/libc.so.6: version 'GLIBC_2.3' not found required by //firefox/".6.5 "Error opening file for writing." on Vista.6.4 Application fails to start because js3250.dll or other program files are missing.6.3 Firefox does not start when System Mechanic is installed.5.5 Procedure entry point js_SaveRegExpStatics error in js3250.dll after updating Firefox.