Download Firefox 6.0 from one of these links:

• http://www.mozilla.com/en-US/firefox/new/
• http://www.mozilla.com/en-US/firefox/central/
• http://www.mozilla.com/en-US/firefox/fx/
• http://www.mozilla.com/en-US/firefox/all.html

Uninstalling Firefox

• https://support.mozilla.com/en-US/kb/Uninstalling%20Firefox
• DO NOT SELECT TO REMOVE USER DATA AND SETTINGS

Installing Firefox on Windows

• https://support.mozilla.com/en-US/kb/Installing%20Firefox%20on%20Windows

Check and tell if its working.

how does this solve my problem? I have been using firefox for atleast 5 years now. I already have installed the updated verison it still wont open?? I need to find out why it wont open and ix it!!

-> Start Firefox in Safe Mode by holding down SHIFT key while starting Firefox

• As an alternative method, use Win + R keys combination and enter one of the following in the Windows Run box:
• firefox -safe-mode
• "C:\Program Files\Mozilla Firefox\firefox.exe" -safe-mode
• "C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -safe-mode

-> Firefox Safe Mode window will appear -> DON'T SELECT ANY OPTIONS. just click Continue in Safe Mode

Check and tell if it starts using Firefox Safe Mode.

-> Troubleshooting extensions and themes

• https://support.mozilla.com/en-US/kb/Troubleshooting%20extensions%20and%20themes

yes, I have tried to start it up in safe mode and it still does the same thing, nothing! I search all over the firefox troubleshoot data base with this issues and I am still getting the same result. I have check my firewalls, ran commands, and even disable my adds on to see if that will work but still firefox wont open. Not even my adobe reader will open now . Oddly enough, my internet explorer is still working but it crashes alot. This sucks

Firefox will not Start

• https://support.mozilla.com/en-US/kb/Firefox%20will%20not%20start
• http://kb.mozillazine.org/Browser_will_not_start_up

Check and tell if its working.

yea, I tried those pages too, still keep doing the same thing which is nothing! Thanks for the help but I guess I can't use firefox on my computer anymore

-> Create a New Profile as a test to check if your current profile is causing the problems.

-> Basic Troubleshooting: Make a New Profile

• https://support.mozilla.com/en-US/kb/Basic%20Troubleshooting#w_8-make-a-new-profile

-> If that New Profile works then you can recover your Bookmarks and Passwords from the Old Profile.

-> Recovering important data from an old profile

• https://support.mozilla.com/en-US/kb/Recovering%20important%20data%20from%20an%20old%20profile

Check and tell if its working.

I found out what the problem was. I kept getting a error message in my internet explore about my adobe reader having a error 103. So I looked it up on the adobe page and found out that the new adobe reader X doesn't support firefox version 5 and above, so thats why it wont let me open firefox or display any PDF files. Once I uninstall Adobe reader X and downgraded to Adobe Reader 9 everything went back to normal. My firefox open without any problems and I can now ope PDF files again!! So don't upgrade your Adobe Reader to version X until you read what it is comparability with!!

I am using both Firefox 6.0 and Adobe Reader 10.1 on Windows XP platform. I don't have any issue using them together. If you are having problems because of Adobe Reader Incompatibility, see these articles:

Update All your Firefox Plugins

• https://www-trunk.stage.mozilla.com/en-US/plugincheck/
• http://www.mozilla.com/en-US/plugincheck/

Using the Adobe Reader plugin with Firefox

• https://support.mozilla.com/en-US/kb/Using%20the%20Adobe%20Reader%20plugin%20with%20Firefox

Opening PDF files within Firefox

• https://support.mozilla.com/en-US/kb/Opening%20PDF%20files%20within%20Firefox

Check and tell if its working.

I really liked the Foxit reader for PDF files. It did not cause problems, though I used it only as a helper application.