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    How to Fix – Couldn’t load XPCom – Error in Firefox

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    Do you experience the annoying “Couldn’t load XPCom” error in Firefox? If you see the Couldn’t load XPCOM error in Firefox, then you can’t start Firefox, or Firefox won’t start or load properly.

    The Couldn’t load XPCom error in Firefox occurs if Windows has been restored to a backup or if there is malware on the computer. In this article, I will give you instructions on how to fix the Couldn’t load XPCom error in Firefox.

    First of all, you need to uninstall the current Firefox installation. You will need to uninstall it via the control panel.

    Click on the Windows start button, go to Settings on the left side. In the Windows, Settings click on Apps.

    windows control panel

    Sort the apps by name and search Firefox. Click on the Firefox installation and click on the Uninstall button.

    firefox apps

    Confirm the Firefox uninstall process by clicking Uninstall. You have now uninstalled Firefox, proceed to the next step.

    Open a new Windows Explorer window. In the address bar type: %appdata%. Select the folder “Mozilla” and delete the Mozilla folder.

    delete mozilla folder

    In the same window type: %temp%, select all files with CTRL+A in the temp folder and delete the files.

    Now go to Firefox.com and install the latest version of Firefox.

    install firefox

    You have now successfully fixed the Firefox “Couldn’t load XPCom” error.

      

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    Max
    Max
    Hi, I am Max ✌🏼I am a computer security researcher. In order to help people, I research adware 🤮and write about everything related to the web browser. I provide our visitors with easy to understand instructions and information. Now I need your help! 🙌🏼  Please, share this article and help other people. Share this information on the internet and contribute to a safer and better online experience for everyone 😍

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