In news:mozilla.support.firefox, EE posted on Fri, 19 Mar 2010 10:26:47 -0700 the following: > For me, Firefox opens 2 windows if it is not already open and I click a > link in Tbird. Unable to reopen Firefox on Mac OS X after installing and closing it. A Mac OS X 10.8.4 user reported being unable to reopen Firefox after installing the latest version and then closing it. The only way to restart Firefox was to create a new profile (or remove all user profiles) and this needed to be done every time, otherwise Firefox would not start.
Browser process from previous session did not exit If the Firefox or SeaMonkey browser process from the previous session did not exit properly, the next time you attempt to start your Mozilla browser it may fail to start with no error messages. Attempts to restart the browser may result in multiple instances of Firefox or SeaMonkey in the processes list. You will not be able to start the browser until you first or restart the computer. (If this is a recurring problem, read for other possible solutions.). Profile locked or inaccessible One of the following messages can appear when you start your Mozilla browser if the is either 'locked' or inaccessible:.
Profile in Use: The appears along with a message that the selected profile is already 'in use' when you attempt to start your Mozilla browser. Close Firefox or Close SeaMonkey message box with one of these messages (using Firefox as an example):. 'Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.'
. 'A copy of Firefox is already open. Only one copy of Firefox can be open at a time.' In the above examples, or restarting the system will normally unlock the profile.
If not, see the article for further instructions. Your Firefox profile cannot be loaded. It may be missing or inaccessible.
(or similar SeaMonkey message): This message appears when the referenced in the cannot be located. See the article for more information. Problematic plugin prevents browser from starting Depending on your browser version and OS, Firefox or SeaMonkey may hang, crash, or simply fail to start because of a problematic plugin. If possible, visit Mozilla's with another browser that Plugin Check supports (e.g., Safari or Opera) to help identify installed plugins. Update all plugins, uninstall any plugins you no longer need or disable all plugins, to see if that resolves the problem.
See for plugin locations and additional troubleshooting information, including if your browser will not start. The following plugins have been known to cause startup problems in Mozilla browsers:. 'TrueSuite Website Log On' (AuthenTec) plugin. This plugin, related to certain fingerprint authentication and identity management software, may prevent Firefox from starting after rebooting the computer.
Users report that and, before a restart, disabling the plugin in the Firefox Add-ons Manager Plugins list will resolve the issue. You can alternately disable the plugin by finding and renaming the file 'npffwloplugin.dll' as reported in. 'Facebook Video Calling Plugin'. If installed, this plugin can prevent Firefox from starting, when you first try to launch Firefox after starting up your computer (you may need to click the Firefox icon 15 - 20 times before it starts). If you can start Firefox, disable the plugin in the Add-ons Manager - Plugins list. To remove the plugin from your computer, see Facebook's uninstall instructions. On Mac OS: Facebook Plugin 'fbplugin103.plugin'.
![Download mozilla firefox for mac Download mozilla firefox for mac](https://prod-cdn.sumo.mozilla.net/uploads/images/2018-09-14-23-15-56-798002.png)
'WebEx.plugin' and old versions of 'huludesktop.webplugin' and 'Flash Player.plugin'. XULRunner error after an update If you see the message, XULRunner - Error: Platform version is not compatible with minVersion. When attempting to open your Mozilla application after a, (' depends on version), use another browser to download the or installer and save it to your desktop or other location. You should then delete the for your Mozilla browser and run the installer you previously downloaded. For detailed Firefox instructions, see. This error is caused by inconsistent file versions ('application.ini' and/or 'platform.ini' and possibly others). The problem may be a security program such as Zone Alarm Extreme Security that is preventing changes to your Mozilla application files after an update.
Firefox does not start after updating with ZoneAlarm ForceField enabled If you use (either standalone or as part of ZoneAlarm Extreme Security) or Firefox may fail to start after an update (you may see a message similar to Error: Platform version '9.01' is not compatible with minVersion = 10.0 maxVersion Settings - Advanced' or 'Internet - Web Security - Settings') then click 'Clear Virtual Data' and restart Firefox. If you still can't start Firefox, turn off Forcefield (in ZA Extreme Security, go to 'Internet - Web Security - Settings - Advanced Settings', and turn off 'Enable Virtualization'). If the problem persists, download the Firefox setup file from, remove the 'Mozilla Firefox' and then, with ZoneAlarm ForceField turned off, reinstall Firefox.
If you need more help, contact. Computer must be restarted message after Firefox upgrade If you see a message similar to Your computer must be restarted to complete a previous upgrade of Firefox after a major update (e.g., from Firefox 3.6 to 8.0) and restarting the computer doesn't help: On Windows, open the Mozilla Firefox (e.g., C: Program Files Mozilla Firefox or, on 64-bit Windows, C: Program Files (x86) Mozilla Firefox) and delete the file 'firefox.exe.moz-upgrade', if found. Alternately, do a (use another browser to download the Firefox installer from and, after first removing the Mozilla Firefox installation directory, reinstall Firefox).
'The program must close to allow a previous installation attempt to complete. Please restart.' On Vista If you are receiving this message when attempting to start Firefox and a restart has no effect, delete the “xpicleanup.dat” file, located in the C: Users AppData Local VirtualStore Program Files Mozilla Firefox folder. If you have problems finding or deleting this file, follow these steps:. Restart your system, or if you know how, terminate all Firefox and xpicleanup processes with Task Manager. Go to 'Start - Start Search' and type in%APPDATA%.
From there, navigate to Local VirtualStore Program Files Mozilla Firefox. Delete the file 'xpicleanup. You should now be able to start Firefox. If the problem persists, restart the system or use Task Manager again, then delete the 'xpicleanup. Exe' file in the Firefox (usually C: Program Files Mozilla Firefox). Procedure entry point jsSaveRegExpStatics error in js3250.dll after updating Firefox Firefox may fail to start after updating and you may see the error, The procedure entry point jsSaveRegExpStatics could not be located in the dynamic link library js3250.dll.
As a workaround, open the Firefox (usually C: Program Files Mozilla Firefox) and look for two 'js3250.dll' files (the second one will be named 'js3250.dll.moz-backup'). Rename 'js3250.dll' to ' Xjs3250.dll' and then rename the backup file to 'js3250.dll'. This should allow Firefox to start but you will still need to update Firefox. Updating Firefox may resolve the issue but if the problem persists, download the Firefox setup file from, remove the 'Mozilla Firefox' program folder and then reinstall Firefox.
'Couldn't load XPCOM' error This Firefox startup error can occur after performing a Windows System Restore but whatever the reason, the usual solution is to do a by removing the Firefox and then reinstalling Firefox (there's normally no need to uninstall Firefox before reinstalling it):. Use any browser to download the Firefox installer from and save the setup file to your computer.
Delete the Firefox program folder, C: Program Files Mozilla Firefox (32-bit Windows) or C: Program Files(x86) Mozilla Firefox (64-bit Windows) by default. by running the setup file you downloaded previously. This error can also occur if you run Firefox in a 'sandbox'. For example, see. Firefox does not start when System Mechanic is installed Firefox may fail to start if the application is installed.
You may see an error message similar to: Firefox.exe - Application Error. The instruction at “0x5a9288f8” referenced memory at “0x5a9288f8”. The memory could not be “written”. (the memory address varies). Internet Explorer, Google Chrome, or other browsers may also fail to start. See if updating System Mechanic fixes the problem or, if don't need the program, consider uninstalling it. As a workaround, try disabling the two System Mechanic services.
You can also try renaming the 'ioloHL.dll' file in the C: Program Files iolo Common Lib folder. Ownership If you used 'sudo' to install Firefox and it starts at the end of the install process and runs when you log in as root but fails to run as a normal user, then check the ownership of '$HOME/.mozilla' and subdirectories. The symptoms are that you won't get any error messages, and Firefox will exit with a value of 1.
The ownership of '$HOME/.mozilla' and subdirectories may be set to 'root:root', and you will need to execute chown -R: $HOME/.mozilla at the command line to get Firefox to work (Firefox 1.0.x). Similarly other users on the system may need their '.mozilla' folder 's permissions changed using 'chown' as shown above. Unable to reopen Firefox on Mac OS X after installing and closing it A Mac OS X 10.8.4 user reported being unable to reopen Firefox after installing the latest version and then closing it. The only way to restart Firefox was to (or remove all user profiles) and this needed to be done every time, otherwise Firefox would not start. See on Apple's discussion forums for the solution, which was to follow a procedure that unlocks all user files (not system files) and resets their ownership and access-control lists to the default. Firefox 4 or above does not start on Mac OS X 10.4 or PPC Mac OS X 10.5 Starting in Firefox 4, Firefox requires at least Mac OS X 10.5 and will only run on an Intel Mac.
If you install Firefox 4 or above on Mac OS X 10.4 or on PPC Mac OS X 10.5 it will not work. You may see an error message such as, You cannot use the application Firefox.app with this version of Mac OS X or, You cannot open the application 'Firefox' because it is not supported on this architecture. Users with Mac OS X 10.4 or PPC Mac OS X 10.5 can after first removing Firefox. Another option is, which is based on Mozilla 2.0 and Firefox 4 code.