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  1. Firefox always say: Couldn't load XPCOM - Mozilla Support

    Aug 12, 2018 · An 'xpcom missing error' is always a problem with files in the Firefox program folder and is usually caused by security software that is locking files and preventing Firefox …

  2. ¿cómo resuelvo el error 'couldn´t load xpcom' sin perder los …

    Al intentar abrir una ventana del navegador me tira este error ( 'couldn´t load xpcom' ) y veo que para resolverlo hay que reisntalar y no quiero perder los marcadores, cómo hago, muchas …

  3. I can't open Firefox, it says couldn't load xpcom. Whats wrong?

    Jul 16, 2013 · After restarting etc, whenever I tried to start Firefox, I got "Couldn't load XPCOM" and no browser. Also my Windows appearance and colors and sizing were all messed up.

  4. Firefox doesn't open. Couldn't load XPCOM - Mozilla Support

    Oct 13, 2020 · Firefox doesn't open. Couldn't load XPCOM 1 reply 1 has this problem 4962 views Last reply by cor-el 5 years ago

  5. Client Challenge - Mozilla Support

    Please check your connection, disable any ad blockers, or try using a different browser.

  6. "Couldn't load xpcom" error in thunderbird - Mozilla Support

    Dec 10, 2021 · "Couldn't load xpcom" error in thunderbird 3 replies 2 have this problem 4752 views Last reply by Walter 3 years ago

  7. Getting the "can't load xpcom" error - Mozilla Support

    Oct 16, 2018 · I'm not sure which update was the cause, but I am getting the can't load xpcom error. I tried installing a newer version of dropbox and it wouldn't install becuase of the same …

  8. How do I re-install Firefox when I get "Couldn't load XPCOM" …

    Mar 18, 2016 · Never really got a finished message on the reinstall but got Couldn't locate XPCOM. Firefox shows up again in my program files after I try to install, but still doesn't work.

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

    Mar 14, 2018 · Firefox error “Couldn’t load XPCOM” 5 replies 12 have this problem 105 views Last reply by FredMcD 7 years ago

  10. Como corrigir o erro couldnt load xpcom.? - Mozilla Support

    Sep 27, 2016 · Como corrigir o erro couldnt load xpcom.? 1 reply 19 have this problem 1506 views Last reply by Zilmar 9 years ago