What caused follow it and how can I solve this problem. ?

I cannot open Firefox and get the error message "cannot open XPCOM.

Hi, one of the most common causes is running the system restore of your PC through an update of Firefox.

The way that usually works is to do a clean reinstall. This means that you delete your Firefox program files, and then reinstall Firefox. This process does not delete your Firefox profile (such as bookmarks and passwords) data, since this information is stored in a different location.

To do a clean reinstall of Firefox, follow these steps: Note: you can print these steps or consult them in another browser.

  1. Download the latest version of Firefox from mozilla.org office (or choose the download for your operating system and language on this page) and save the file to install it on your computer.
  2. Once the download is complete, close all Firefox Windows (or open the Firefox menu and click on the button close ).
  3. Remove the Firefox installation folder, which is located in one of these locations, by default:
    • Windows:

      • C:\Program Files\Mozilla Firefox
      • C:\Program Files (x 86) \Mozilla Firefox
    • Mac: Delete Firefox in the Applications folder.
    • Linux: If you have installed Firefox with the distribution-based package manager, you must use the same way to uninstall: see Install Firefox on Linux. If you have 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 on the downloaded Setup file and go through the steps in the installation wizard.
    2. Once the wizard is completed, click to open Firefox directly after clicking the Finish button.

More information on the resettlement of Firefox can be found here.

WARNING: Do not use an uninstaller to third parties as part of this process. This could permanently delete your Firefox profile data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and passwords saved. They can be retrieved easily unless they have been backed up on an external device! See back up and restore the information contained in the profiles of Firefox.

Please report to say if this helped you!

Thank you.

Tags: Firefox

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