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

Wo archive tread sia. Meɖekuku bia biabia yeye ne ehia kpeɖeŋu.

After upgrading to v 4.0.1 I get an error message on startup: "whathappened:TypeError:Components.classes['@mozilla.org/extensions/manager;1'] is undefined". I click OK and Firefox starts, but how do I get rid of the error message?

  • 1 ŋuɖoɖo
  • 1 masɔmasɔ sia le esi
  • 2 views
  • Nuɖoɖo mlɔetɔ Xircal

iancb99
iancb99
more options

Add-ons in use: DownThemAll Download Helper Ant Video Downloader FoxySpider all of which continue to function ok with the new version.

Add-ons in use: DownThemAll Download Helper Ant Video Downloader FoxySpider all of which continue to function ok with the new version.

All Replies (1)

Xircal
Xircal
more options

You'll get this error if you have an add-on installed which is incompatible with the current version of Firefox.

Try running Firefox in Diagnose Firefox issues using Troubleshoot Mode. If it functions properly in that configuration, then one of your add-ons is the culprit.

N.B. Update VLC player via http://www.videolan.org/ Your installation is seriously out of date which poses a security risk. See VLC Media Player 1.1.9 closes security holes

Actually, 1.1.9 is also a security risk, but not as bad as the version you have. See A new security flaw hits VLC

I'd advise you to install Secunia's free Personal Software Inspector, download from http://secunia.com/vulnerability_scanning/personal/ to ascertain what else you need to take care of.

Xircal trɔe