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Couldn't load XPCOM

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  • 32 have this problem
  • 24 views
  • Last reply by guigs

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After following Mozilla instructions, I can't open internet anymore. It says "Couldn't load XPCOM".

After following Mozilla instructions, I can't open internet anymore. It says "Couldn't load XPCOM".

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Profile Manager - Create, remove or switch Firefox profiles try opening Firefox with a new profile, if you get the same error please try a clean reinstall:

  • download the full firefox setup file from https://www.mozilla.org/firefox/all/
  • uninstall firefox on the machine
  • manually delete all remaining files in the firefox program folder, which usually resides in C:\Program Files (x86)\Mozilla Firefox\
  • reinstall firefox

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