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

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

How do I rectify the error - A new window does not open unless I click 'ok' on the error box which says 'Java Script Application'; What happened:type Error; Components.Classes['@mozilla.org/extensions/manager;1'] is undefined

  • 1 antwoord
  • 3 hierdie probleem
  • 2 views
  • Laaste antwoord deur cor-el

more options

Whenever I try and open a new firefox window (not ta), or a site automatically opens one, the new window does not open unless I click OK or close the dialog box 'x'

The dialog box has a headinf -Java Script Application and the message is

What happened:type Error; Components.Classes['@mozilla.org/extensions/manager;1'] is undefined

Whenever I try and open a new firefox window (not ta), or a site automatically opens one, the new window does not open unless I click OK or close the dialog box 'x' The dialog box has a headinf -Java Script Application and the message is What happened:type Error; Components.Classes['@mozilla.org/extensions/manager;1'] is undefined

All Replies (1)

more options

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

In Firefox 4 you can use one of these to start in Safe mode:

  • Help > Restart with Add-ons Disabled
  • Hold down the Shift key while double clicking the Firefox desktop shortcut (Windows)

See:

If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.

  • Use "Disable all add-ons" on the Safe mode start window to disable all extensions.
  • Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")