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

When I close a popup window, Firefox wants to close all sessions. Why

  • 1 reply
  • 12 have this problem
  • 6 views
  • Last reply by henfiber

more options

I have multiple tabs open in Firefox. When I allow a pop up window to open, when I close that pop up window, Firefox wants to close all tabs and quit. This is a new behavior and I'm not sure why.

Any help or suggestions will be greatly appreciated.

I have multiple tabs open in Firefox. When I allow a pop up window to open, when I close that pop up window, Firefox wants to close all tabs and quit. This is a new behavior and I'm not sure why. Any help or suggestions will be greatly appreciated.

All Replies (1)

more options

I had the same problem. I found out that this is caused by "Microsoft's HTML5 extension for WMP player plug-in". Disable this addon and it should be fixed

Generally, the most similar bugs are caused by problematic addons, therefore in such cases you can follow the steps described in Troubleshooting extensions and themes