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
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
Tất cả các câu trả lời (1)
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).
- Don't make any changes on the Safe mode start window.
- https://support.mozilla.com/kb/Safe+Mode
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")