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].

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

Hi,
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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.
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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]
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http://www.mozilla.org/en-US/firefox/all.html
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see also for info : [https://support.mozilla.org/en-US/kb/install-firefox-windows Install Firefox on Windows]
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Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.

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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.
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file.

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 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)
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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
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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].

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Hi deano68,
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*http://kb.mozillazine.org/Browser_will_not_start_up

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See these threads and pages about searchqu/searchnu:
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*[[/questions/790833]]
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It's simple.
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[[Basic Troubleshooting]] has a "clean reinstall" section at the end that does not require you to open Firefox.
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On a desktop PC running Windows XE, FF will not launch. Has been working very well since we installed FF two weeks ago and made it our default browser. IE launches normally allowing me to post this question. On my laptop, on the same wireless connection, FF works fine. I have rebooted several times. Everything seems normal except for FF. I have run PC Doctor and have fixed all problems that came up. McAfee finds no problems.

Update: After a very long time, perhaps 15 minutes or more, the FF screen comes up blank with the "loading..." message on the first tab. Also, because I tried several times to launch FF, more such screens came up with the same result. My home page never loads. If I stop page loading and try another web site I get the same result.

Firefox will not launch, including in Safe Mode or the Profile Manager

Firefox on my other machine will not visibly launch. There is occasionally a message stating "you already have a Firefox session running, please close it before opening a new one" when I make a second attempt. I have tried to follow all the directions in any of the troubleshooting guides or in the forum posts on other sites, but I cannot even open the Profile Manager or open Firefox in safe mode. We have done a fresh install and that has not helped. Any additional assistance would be appreciated.

You can try to disable the Java Quick starter and the Java Console extension in the Control Panel > Java.
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See [[Troubleshooting extensions and themes]]
See [[Troubleshooting plugins]]

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

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