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Solved: Mozilla Firefox odd error

Discussion in 'Web & Email' started by lisakmusco, Jun 3, 2015.

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  1. lisakmusco

    lisakmusco Thread Starter

    Nov 18, 2003
    I have been using Firefox for quite some time. Not too long ago I went to open the program and received an error message "could not find the Mozilla runtime". I figured I was probably due to upgrade versions anyway, so I simply reinstalled the program. It worked for a few days maybe and then received the same error. This has happened at least three times now. What could be wrong?

    Im not sure the two could possibly be related, but it should be noted that this began happening at about the same time as my previous post about my Outlook error message.
  2. Pijush


    Sep 10, 2014
    From: https://support.mozilla.org/en-US/questions/1050729

    Certain Firefox problems can be solved by performing a Clean reinstall. This means you remove Firefox program files and then reinstall Firefox. Please follow these steps:
    Note: You might want to print these steps or view them in another browser.

    1. Download the latest Desktop version of Firefox from mozilla.org (or choose the download for your operating system and language from this page) and save the setup file to your computer.
    2. After the download finishes, close all Firefox windows (or open the Firefox menu [​IMG] and click the close button [​IMG] ).
    3. Delete the Firefox installation folder, which is located in one of these locations, by default:
      • Windows:
        • C:\Program Files\Mozilla Firefox
        • C:\Program Files (x86)\Mozilla Firefox
      • Mac: Delete Firefox from the Applications folder.
      • Linux: If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see Install Firefox on Linux. If you downloaded and installed the binary package from the Firefox download page, simply remove the folder firefox in your home directory.
    4. Now, go ahead and reinstall Firefox:
      1. Double-click the downloaded installation file and go through the steps of the installation wizard.
      2. Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.
    More information about reinstalling Firefox can be found here.
    WARNING: Do not use a third party uninstaller as part of this process. Doing so could permanently delete your Firefox profile data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be easily recovered unless they have been backed up to an external device! See Back up and restore information in Firefox profiles.
    Please report back to say if this helped you!
    Thank you.
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