Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

Learn More

When I open a second browser window, I get error messages and a non working browser window.

  • 2 回覆
  • 2 有這個問題
  • 10 次檢視
  • 最近回覆由 PARSQUIRE

more options

The messages are: "Exc in ev handl: TypeError: brw is undefined" in a small window labelled '[JavaScript Application] and, after clicking "OK" in that small window, a browser window opens with none of my saved options and the following: "bitsMarkingCollection.init():TypeError: this.gBrowser.browsers[i] is undefined" in an error box labelled "Wired-Marker". Upon clicking OK, the new window doesn't work properly

If I open a third window, while the second one remains opened, there's no problem.

The messages are: "Exc in ev handl: TypeError: brw is undefined" in a small window labelled '[JavaScript Application] and, after clicking "OK" in that small window, a browser window opens with none of my saved options and the following: "bitsMarkingCollection.init():TypeError: this.gBrowser.browsers[i] is undefined" in an error box labelled "Wired-Marker". Upon clicking OK, the new window doesn't work properly If I open a third window, while the second one remains opened, there's no problem.

被選擇的解決方法

Try the Firefox SafeMode to see how it works there.
A troubleshooting mode, which disables most Add-ons.
(If you're not using it, switch to the Default Theme.)

  • You can open the Firefox 4/5/6/7 SafeMode by holding the Shft key when you use the Firefox desktop or Start menu shortcut.
  • Or use the Help menu item, click on Restart with Add-ons Disabled... while Firefox is running.

Don't select anything right now, just use "Continue in SafeMode."

To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before using the Firefox shortcut (without the Shft key) to open it again.

If it is good in the Firefox SafeMode, your problem is probably caused by an extension, and you need to figure out which one.
http://support.mozilla.com/en-US/kb/troubleshooting+extensions+and+themes

從原來的回覆中察看解決方案 👍 0

所有回覆 (2)

more options

選擇的解決方法

Try the Firefox SafeMode to see how it works there.
A troubleshooting mode, which disables most Add-ons.
(If you're not using it, switch to the Default Theme.)

  • You can open the Firefox 4/5/6/7 SafeMode by holding the Shft key when you use the Firefox desktop or Start menu shortcut.
  • Or use the Help menu item, click on Restart with Add-ons Disabled... while Firefox is running.

Don't select anything right now, just use "Continue in SafeMode."

To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before using the Firefox shortcut (without the Shft key) to open it again.

If it is good in the Firefox SafeMode, your problem is probably caused by an extension, and you need to figure out which one.
http://support.mozilla.com/en-US/kb/troubleshooting+extensions+and+themes

more options

It was a lot of work and the add on that was at the root of the problem was a surprise to me but, your suggestion worked and I appreciate your prompt post and your help. Thanks.