Firefox is not launching again

MY FIREFOX IS NOT LAUNCHING..I MEAN IT CAN NOT START. I HAVE INSTALLED IT MANY TIMES, YET IT CAN NOT START. I HAVE UNINSTALLED IT MANY TIMES, YET THE PROBLEM PERSISTS. PLEASE WHAT DO I LACK IN MY PC THAT MADE FIREFOX NOT LAUNCH? I AM USING HP 530 LAPTOP WITH WINDOWS XP.
AND I HAVE ENJOYED USING FIREFOX FOR LONG AND I LOVE USING FIREFOX AND ALL ITS FEATURED PRODUCTS. BUT I CANT LAUNCH IT AGAIN. PLEASE HELP ME.

Are you talking about a web link short cut, or the icon to launch Firefox?

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Firefox will not launch, but shows in task manager, after updating graphics drivers to AMD's 13.1.

Hi,
After updating to the AMD 13.1 drivers, on my 5770, Firefox will not launch; it does, however, show in the task manager. I should note that it will start in Windows safe mode; when I had it open in safe mode, I used that time to disable all plugins, add-ons, extensions, and created a new profile. This did not help. I also tried launching Firefox in to its safe mode, and had no luck with this either.
I experienced this problem once before, when trying to update to a previous version. I believe I was moving from 12.1 to 12.4, but I'm not 100% sure of that. Ultimately, my solution then was to retrograde back to my previous driver. The steps mentioned in the previous paragraph did not help at that time, not did a complete reinstall.
15 years of computer repair experience, and this has me baffled.
Thank you to anyone who might be able to help.
Possibly relevant specs.
Windows 7 Ultimate x64
AMD Phenom II x4
6BG Ram
AMD 5770 graphics, running Catalyst 13.1

By any chance, did you disable Firefox's use of hardware graphics acceleration? To avoid a round-trip through Windows Safe Mode, you could try adding these to your prefs.js file while Firefox is closed.
To quickly open the folder with the correct prefs.js file, you can use
Help > Troubleshooting Information > "Show Folder" button
Because Firefox may overwrite change to this file at shutdown, you should edit it after closing Firefox and allowing a few moments for Firefox to finish updates to the files.
These are the preferences I think are most relevant:
user_pref("gfx.content.azure.enabled", false);
user_pref("gfx.direct2d.disabled", true);
Does that make any difference?

Upgraded to 7.0.1 and then Firefox would not launch.

Upgraded to 7.0.1 last night. Firefox would not launch afterward. Hour glass appears for a few seconds then goes away. I can see on Task Manager that Firefox.exe appears in the Proceses list and then after a few seconds disappears. No browser, no error message. After going through every troubleshooting step I could find I removed 7.0.1, downloaded 3.6.23 from Firefox site and this works fine.

Very strange. So today I log in to my banking site and everything is working properly. Firefox tells me I am running the same version 8.0.1. Who knows! I guess I should just be happy that Firefox works as it should.

Firefox will not launch

firefox will not launch after upgrading. Every time I try to launch I am advised to reboot to complete the upgrade.

I think you already known that latest firefox version 13.0.x don't work with xp sp1, needs sp2 and above.
Try [https://support.mozilla.org/en-US/kb/uninstall-firefox-from-your-computer Uninstall Firefox from your computer]
then Download the latest version(with your safari) from :
http://www.mozilla.org/en-US/firefox/all.html
and Install the version that you have downloaded (13.0.1).
Do not select to remove your personal data, your profile data is stored elsewhere in the [http://kb.mozillazine.org/Profile_folder_-_Firefox Firefox Profile Folder], so you won't lose your bookmarks or other personal data.
see also for info : [https://support.mozilla.org/en-US/kb/install-firefox-windows Install Firefox on Windows]
thank you
Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.

Firefox will not launch after latest OS X security update

Just installed latest Apple software update on Snow Leopard. Now, Firefox will not launch. Checked system logs and get this:
11/21/10 10:24:20 PM com.apple.launchd.peruser.501[155] ([0x0-0x6d06d].org.mozilla.firefox[802]) Exited with exit code: 1
The following may or may not be related. Before installing the update, I had lots of these messages in my logs:
11/21/10 7:27:17 PM firefox-bin[39594] *** __NSAutoreleaseNoPool(): Object 0x1422680 of class __NSCFDate autoreleased with no pool in place - just leaking
11/21/10 7:27:17 PM [0x0-0x493493].org.mozilla.firefox 2010-11-21 19:27:17.323 firefox-bin[39594:903] *** __NSAutoreleaseNoPool(): Object 0x1422680 of class __NSCFDate autoreleased with no pool in place - just leaking

Sounds like you may have a check in the box for HTTP and/or HTTPS proxy servers, but you are not behind a proxy server. Safari and Software Update use the HTTP port, Mail doesn't, and Firefox ignores the Mac OS preferences and uses it's own proxy settings.
Go to System Preferences > Network > active connection > Proxies tab and if there are proxies checked, UNcheck them.
Hope this helps...

Firefox did not launch. I downloaded new one. the icon is crossed out. how can I fix this?

March 25 2011
I'm on a Mac OS X (power pc)
After restarting my computer today. Firefox did not launch. I clicked on the icon, it started to initiate and then stopped before anything happened.
To try to fix the problem, I trashed the application and downloaded a new one. It gave me a message: "The application Firefox cannot be launched -10661."
I retried the download and the second time, the Firefox application icon has been crossed out. That is it has a circle with a slash over it. Same message comes up.

Sorry, Firefox 4 is not available for PowerPC Macs. You can re-install the previous version from here:
http://www.firefox.com/all-older.html
Or you can find an unofficial version of Firefox 4 for PowerPC here: http://www.floodgap.com/software/tenfourfox/

Firefox does not launch. Process firefox.exe *32 is in task manager, but browser does not open.

Running Windows 7. Installed latest version of Java and Firefox. Rebooted. Firefox no longer launches but does have a process running.

Something is preventing Firefox from loading your profile correctly. You may want to try loading Firefox in Safe Mode with add-ons disabled.
[https://support.mozilla.com/en-US/kb/Safe%20Mode How To Start Firefox in Safe Mode]
Once you're in Safe Mode you can view a list of your plugins in '''Tools > Add-Ons > Plugins''' and disable each plug-in one by one until Firefox can open normally outside of safe-mode. If disabling one particular plugin fixes the problem you will need to uninstall that plugin. You are not able to uninstall plug-ins from within Firefox itself but sometimes they are related to other programs installed on Windows.
[http://plugindoc.mozdev.org/faqs/uninstall.html Uninstalling Plugins FAQ]
Your system details shows that your Firefox version is 3.x however the latest version is 4.0.1. If you're not sure you've installed the latest version you can try downloading the latest version and installing it again.
[http://www.mozilla.com/en-US/firefox/fx/ Mozilla Firefox Homepage]
Visit this link to determine if your Firefox plugins are truly up-to-date.
[http://www.mozilla.com/en-US/plugincheck/ Mozilla Firefox Plugin Check]
As a last resort you can uninstall and reinstall Firefox, while keeping existing user settings and profiles, but if it continues to hang while booting, as a final resort you can delete your profile and start over. Take note you '''will''' lose all of your preferences, bookmarks, and stored search queries and passwords.
[https://support.mozilla.com/en-US/kb/Managing-profiles Starting The Profile Manager]

Firefox will not launch when I click the icon, it worked okay previously

A week ago firefox began taking a long time to launch sometimes requireing reclicking the icon.
Now it will not launch at all.
I get no error messages, nothing happens when I click the icon.
HELP

A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.
See:
*https://support.mozilla.org/kb/Server+not+found
*https://support.mozilla.org/kb/Firewalls
See also:
*http://kb.mozillazine.org/Browser_will_not_start_up

After updating firefox will not launch

Ever since version 8 became available whenever I update FF it will not launch. No error messages or anything, just no response at all from the button. I have cleared the cache and cookies, completely removed FF using the control panel - add remove programs, deleted the FF folder from C: program files and then emptied the trash. then downloaded a fresh copy of FF from www.mozilla.org. Again no response at all when attempting to launch. not even an error report. I am running Microsoft XP Pro 5.1.200 SP 3 Build 2600 on a Dell OptiPlex 745 processor x86 family 6 model 15 stepping 2 intel ~1794 mhz

What about the latest version of Firefox, Firefox 9? Does that work?
If it doesn't, the instructions here might be of help: [[Firefox will not start]]

I get a crash notice. Firefox will not launch at all -- it keeps giving crash notice. I also cannot generate a crash report. I have uninstalled and reinstalled -- same issue. It does not launch.

Firefox crashed this morning. It will not launch even after being uninstalled and reinstalled. All I can get is a crash box. It will not relaunch in any way
== This happened ==
Every time Firefox opened
== this morning -- it did not open ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0; yie8)

This sounds the same as my issue. I was browsing in Firefox v6.0 last night and all of a sudden it closed with no notice or error message. When I tried to open FF I received the messaga; We're Sorry - Firefox had a problem and crashed. We'll try to restore your tabs and windows when it restarts." I does not restart. I have been using IE to browse for a solution and nothing works other than opening as administrator. Now this problem is only on one of my laptops and is fine on my desktop and other laptops so it appears to be something specific to my laptop which is running Window XP Home and Service Pack 3.
Some suggestions were to change the profile (did not work), end the firefox.exe process in task manager (not running in processes) and delete an xpicleanup.exe (not listed).
The only thing that works is to run as administrator but I have to do this everytime. Is ther a solution?
file.

Firefox is not launching in one user account (just does not react at all) although it works fine in another account on the same laptop

Have been running Firefox without problem in both my own and my child's account on my laptop. Today, although Firefox still works normally in my own account, it does not launch at all in my child's account. Clicking on either the short cut or via AllPrograms results in the timer starting briefly and then disappearing and nothing happening. I have checked Task Manager and Firefox is not showing as running in the Processes tab. I have tried to set up a new profile in that account to no effect.

I am having exactly the same problem. This worked on all versions of Firefox up until mid last week. It started failing on Wednesday, coincident with the installation of Firefox 8.0 (see attached gif showing the automatic update on that date).
To fix the problem, you have to shut down Firefox 8.0 on one account, switch to the other account and then you can run it there.
If Firefox 8.0 is running on on account, the other account will run Firefox, but when you enter an URL it waits for quite a while then reports "The connection was reset. The connection was reset while the page was loading".
We also use Thunderbird 8.0 and it does not exhibit this problem, and works at the same time as Firefox 8.0. I suspect they might share some components.
I'd be happy to supply more details if needed.
Thanks,
Ed

Firefox will not launch. (Cannot make a new profile)

Been using Firefox since the dinos--'til Firefox refused to launch.
Tried all the options on the support.
Made sure that there are no extensions, and restarted my laptop more than the number of stars in this universe.
Tried creating a new profile--but no matter what I did, Profile Manager wouldn't start.
Help! I hate using the other browsers ):

First check to see if an add-on is causing this problem, for details on how to do that see the [[troubleshooting extensions and themes]] article.
If that does not help, try creating a new profile. Firefox stores user data in the profile folder, creating a new profile will show if the problem is with the old profile. For how to do that see [http://kb.mozillazine.org/Creating_a_new_Firefox_profile_on_Windows Creating a new Firefox profile on Windows]. If the new profile works, you can transfer select data such as bookmarks and passwords to the new profile. DO not copy the preferences file, and it is best to re-install add-ons. For details of how to do that see [http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox transferring data to a new profile].

Firefox does not launch a website when I click a link.

When I click on some links firefox opens a new tab but does not launch the web page. The tab says (GIF Image, 1 x 1 pixels) but the screen is blank. I can get to the sites on my wife's firefox, but not on mine or on chrome from my computer.

Some firewalls like Kaspersky can block content and send a 1x1 GIF image instead.<br />
Kaspersky: Protection > Firewall > Filtration system: disable the "Banner Ad Blocker"
See:
* https://support.mozilla.org/kb/Configuring+Kaspersky+Internet+Security
* https://support.mozilla.org/kb/Firewalls

Unable to remove iLivid from Firefox because Firefox will not launch.

I am attempting to remove iLivid from my computer. It has hijacked my browser. I removed it from IE and Chrome; however, I am unable to remove it from Firefox because it will not launch. How can I remove this "thing" from Firefox if it will not launch???? I used the shortcut on the taskbar, the icon on my desk top and also the navigation menu. None will launch Firefox.

See these threads and pages about searchqu/searchnu:
*[[/questions/816181]]
*[[/questions/790833]]
*[[/questions/921690]]
*http://bit.ly/searchqutoolbar
*http://www.ilivid.com/faq.htm#8
*http://www.beyourownit.com/forum/security-malware-issues/4758-searchnu-searchqu.html

Firefox will not launch in any mode. I cannot open Profile manager to change to another profile. No change with delete and reload of program.

I've been using Firefox for years. Had this happen once before but was able to open the profile manager and change to a new profile. At this point I can't even do that. Suggestions??

[[Basic Troubleshooting]] has a "clean reinstall" section at the end that does not require you to open Firefox.
In any case, you should first take a look at the [[Firefox will not start]] article, which I mentioned in my first post. If that doesn't help, also check out http://kb.mozillazine.org/Browser_will_not_start_up#Windows-specific_problems

Firefox is not launching again

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