Firefox "Could not load XPCOM" error after reinstall


  1. iko22
    Posts : 2,798
    Windows 7 x64, Vista x64, 8.1 smartphone
       New #1

    Firefox "Could not load XPCOM" error after reinstall


    Problems with my Firefox installation. Firstly Firefox would not launch so I reinstall the program with latest version and now it will not launch with this error message "Could not load XPCOM". What is it? And how do I get Firefox browser working again? Thank you.
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  3. Ranger4
    Posts : 9,746
    Windows 7 Home Premium 64 bit sp1
       New #2

    Have a look at this Mozilla website & see if it helps you.

    Firefox error “Couldn’t load XPCOM” | Firefox Support Forum | Mozilla Support
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