Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Updated to ver 9.0.1; get error:oad: TypeError: Components.classes['@checkpoint.com/XPCOMTrustCheckerMozilla/TrustCheckerMozilla;1'] is undefined

  • 1 reply
  • 2 have this problem
  • 3 views
  • Last reply by cor-el

billmontgomery
billmontgomery

XP Media Center 2002, Service Pack 3.

XP Media Center 2002, Service Pack 3.

All Replies (1)

cor-el
cor-el
  • Moderator

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

Start Firefox in Use Troubleshoot Mode in Firefox 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).