Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Open New Window not working in Firefox 4.0.1

  • 2 پاسخ
  • 20 have this problem
  • 4 views
  • آخرین پاسخ توسّط morgandeegan

more options

I upgraded to Firefox 4.0.1 and now the Open New window does not work via Command+N, through File > New Window, or by the task bar right click > New Window.

I can get a new window to create by dragging a tab to the desktop.
I upgraded to Firefox 4.0.1 and now the Open New window does not work via Command+N, through File > New Window, or by the task bar right click > New Window. I can get a new window to create by dragging a tab to the desktop.

All Replies (2)

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: Firefox (Tools) > Add-ons > Appearance/Themes).

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")
more options

Solved! It was the 1Password extension. Once removed it works normally.