Firefox will not launch. Nothing shows up at all after download.

I have tried repeatedly to download and use Firefox, but I can never get it to work. I download everything, but when it gets to the end where FF should launch, nothing happens. I get no errors, no messages, absolutely nothing. I have tried downloading with different versions, but I have never been able to download it successfully.
== This happened ==
Not sure how often
== It has always been the problem. ==
== User Agent ==
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.70 Safari/533.4

Download and SAVE the installer to your hard drive.
Current Firefox version, just choose your language and OS:
http://www.mozilla.com/en-US/firefox/all.html
See:
http://support.mozilla.com/en-US/kb/Installing+Firefox
http://support.mozilla.com/en-US/kb/Custom+installation+of+Firefox+on+Windows

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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);
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Itunes will not launch, it shows message of "itunes library .itl" can not be read because it was created by a newer version of itunes. I tried opene it in save mode but I had the same problem.

Itunes will not launch, it shows message of "itunes library .itl" can not be read because it was created by a newer version of itunes. I tried opene it in save mode but I had the same problem.

If you still have an issue you may have to see about using the iTunes version (application) included with Snow Leopard 10.6 from the installer or an another one if available online, and see if that will install.
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http://www.apple.com/support/itunes/install/
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Firefox will not launch

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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]
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).
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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.

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:
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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.
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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.

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== This happened ==
Every time Firefox opened
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== User Agent ==
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file.

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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

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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]]

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See these threads and pages about searchqu/searchnu:
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*[[/questions/790833]]
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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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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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HT1339 Ipod is dead ,will not charge, nothing showing on screen?

My ipod is dead, will not charge, nothing comes up on screen?

After leaving the Nano to charge for a minimum of of 30 minutes, try to reset it by pressing and holding both the Select/Center and Menu buttons together long enough for the Apple logo to appear.
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I have the same problem (and with Mozilla Thunderbird) running with Windows Vista OS. The non-opening problem was preceded by a long period where Firefox and other programs were taking absurdly long times, such as one minute, to open. Starting Windows in "safe mode with networking" solves the problems. Similarly, I just found that If I run msconfig.exe and select "diagnostic startup" then Firefox and Thunderbird both start and start up really fast (that is, when most services and startup programs are prevented from starting). However there is no network so they do not connect. I then turned on (in msconfig) enough processes to get networking running and Firefox and Thunderbird still start up really fast.
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Note that all the content in the pop-up is part of the Adobe Flash Player object.
You can try these steps in case of issues with web pages:
Reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.
*Hold down the Shift key and left-click the Reload button
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Clear the cache and cookies only from websites that cause problems.
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"Remove Cookies" from sites causing problems:
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Firefox will not launch. Nothing shows up at all after download.

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