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Mozilla Firefox won't open after installing it.

Discussion in 'Web & Email' started by dmrandagk, Jul 20, 2009.

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  1. dmrandagk

    dmrandagk Thread Starter

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    I have installed Mozilla Firefox on a friend's computer. She is on XP and it appears to download and install, but when I try to run it the program won't open.

    She has Norton 360 Anti virus all singing and dancing program. Could this be blocking Firefox?

    Any clues?

    dmrandagk
     
  2. LauraMJ

    LauraMJ Administrator

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    12,653
    Make sure Firefox is on the "allowed" list for Norton and any firewall you may have on there, too.
     
  3. Michael York

    Michael York

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    Nov 7, 2007
    Messages:
    395
    Hi dmrandagk,

    This is Mike from the Norton Authorized Support Team.

    If Norton 360 has the latest updates applied, when you installed Firefox it should have automatically been added to the Norton Firewall "Program Control" list. If it has not been added, make sure that you have the latest updates applied to Norton 360 by manually running LiveUpdate. You can do this by opening Norton 360, mouse-over the "PC Security" bubble and choose "Check for Updates." If any updates are installed, restart your computer and then launch Firefox and see if you can access the web. If you still have problems, please carefully follow the instructions in the document below.

    Allow Internet-enabled applications access through the Norton Firewall

    Let me know if this resolves the issue.

    Thanks,
    Mike
     
  4. dmrandagk

    dmrandagk Thread Starter

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    I have not been able to look at my neighbour's computer since you sent me some advice, but I will try it when possible and let you know if she can then use Firefox. Thanks very much for your time.
     
  5. dmrandagk

    dmrandagk Thread Starter

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    I have now been to see my friend whose computer won't open Firefox. We got in touch with Norton support and they took over the computer remotely and disabled Norton and we still could not start Firefox, so they concluded that it could not be a Norton problem.

    However, she used to be able to follow links to URLs sent in emails and then could not, so we eventually f9und that IE was not ticked as the default browser, and by setting IE as the default browser, links are now able to be followed, but we still cannot start Firefox. We are stumped.

    dmrandagk
     
  6. throoper

    throoper Trusted Advisor

    Joined:
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    Messages:
    5,152
    A simple thing to try is to open the folder at C:\Program Files\Mozilla Firefox and locate the firefox.exe file. Change its name to firefox1.exe and double click it.
    If the program starts, then it's likely a firewall or malware that's the problem.

    If it doesn't start, change the name back to firefox.exe and do a complete uninstall.
    Remove Firefox using Add/Remove programs.
    Be sure to manually remove the following folders if they exist after uninstalling:

    C:\Documents and Settings\{username}\Application Data\Mozilla
    C:\Documents and Settings\{username}\Local Settings\Application Data\Mozilla

    Go to the Mozilla site HERE and download the latest version.
    Boot the computer into Safe Mode and try installing it.
    Reboot into normal mode and see if it will run.
     
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