Firefox will not launch, unable to open profile manager.

When I try to open Firefox, my (taskbar?) shows that firefox is trying to open, but then it disappears, does not open, and no error message is visible. I am unable to access the profile manager via terminal as directed on the troubleshooting guides.

I don't think you did anything wrong. You have the same symptoms that a number of us have seen. Looks like a bug. I am guessing that the beta testers for Lion Server were mostly power users that didn't make many changes through the new server.app. Those of us that are rookies that are trying to setup home servers for iTunes, software updates, etc. are running into problems with the set-up. No solutions that I am aware of have been found yet.

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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?

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.

My University email uses outlook and firefox will not let the page open once i log into the university login. It used to work, but now just shows a completely white tab. My email works fine in other browsers. Why?

My University email uses outlook and firefox will not let the page open once i log into the university login. It used to work, but now just shows a completely white tab. My email works fine in other browsers. Why?

Make sure that you haven't left a profiles.ini file.
* http://kb.mozillazine.org/profiles.ini_file
*http://kb.mozillazine.org/Profile_folder_-_Firefox

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 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

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

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 will not launch in OSX Lion (10.7)

It's simple.
I upgraded last night to OSX 10.7 (Lion).
Today Firefox will not open. I get a dialog that it can't open...
What gives?

[[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 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

Firefox will not start (crashes on opening) following upgrade to Ubuntu 10.10; crash report specifies IcedTeaPlugin.so

After upgrading to Ubuntu 10.10 (Maverick Meerkat) beta, Firefox will not open. A crash report is generated each time. Looking at all the crash reports, they specify the IcedTeaPlugin.so @0x7cec as the point where the crash occurs.

I was also having the same problem but it disappear once I removed the icedtea plugin from synaptic. After that I tried to re install the icetea plugin again and there was no issue in firefox, it started normally.
My icetea6-plugin version is 6b20-1.9.1-1ubuntu3

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]]

Suddenly, Firefox will not launch. When I try with the Task Manager up, it never appears on the list of applications.

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.
Control Panel > Java > Advanced tab > Miscellaneous >Java Quick Starter (disable)
You can also disable the Java plugin in Firefox: Tools > Add-ons > Plugins
See [[Troubleshooting extensions and themes]]
See [[Troubleshooting plugins]]

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 will not launch, unable to open profile manager.

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