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my firefox is not working . what is the best way to fix it


i have been getting a lot of script on this page is not functioning messages and in the last day or 2 firefox has stopped running and will not open when i click on the firefox icon . is the best thing to do to fix the problem to remove my current version and re download it from the mozilla home page or can it be fixed another way . also if i do have to remove it will i loose my bookmarks .

Additional System Details


  • User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; (R1 1.6); .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; InfoPath.2)

More Information

Amit Kumar Thakur 83 solutions 863 answers


The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.

Further information can be found in the Reset Firefox – easily fix most problems article.

Did this fix your problems? Please report back to us!

Thank you.

  • Top 10 Contributor
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10753 solutions 96760 answers

See also:

A possible cause is security software (firewall,anti-virus) 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 and the plugin-container 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.


Question owner

thanks a million for your replies . i will read all the articles you have given me . amitshree i don;t think i can do as you say just now due to the fact i can;t open firefox . the only reason i am here at all is i am using an old version of internet explorer ! i will try and open firefox and if it does work i will folow your instructions . i will let you know how i get on

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