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Updated to ver 9.0.1; get error:oad: TypeError: Components.classes[';1'] is undefined

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  • 2 have this problem
  • Last reply by cor-el

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XP Media Center 2002, Service Pack 3.

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That is a problem with a ZoneAlarm toolbar or extension (TrustChecker) that isn't working properly.

Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).