- "Firefox is already running, but is not responding.
- Close Firefox or Close SeaMonkey message box with one of these messages (using Firefox as an example):.
- 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:
#MOZILLA FIREFOX 43.0.4 DOWNLOAD MAC OS X#
- 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.
- 5.4 "The program must close to allow a previous installation attempt to complete.
- 5.3 Computer must be restarted message after Firefox upgrade.
- 5.2 Firefox does not start after updating with ZoneAlarm ForceField enabled.
- 5 Startup issues after a Software Update.
- 4 Problematic plugin prevents browser from starting.
- 3 Problematic extension or hardware acceleration prevents browser from starting.
- 1 Browser process from previous session did not exit.