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

Firefox now opens a new window, rather than a new tab

  • 1 reply
  • 1 has this problem
  • 27 views
  • Last reply by cor-el

more options

Firefox now opens a new window, rather than a new tab when I click on a bookmark or the +, or when I start a new download, regardless of Tabs settings in the Options General page. This is different from original behavior, and I have no idea what happened. How do I change back to Tabs rather than window?

Firefox now opens a new window, rather than a new tab when I click on a bookmark or the +, or when I start a new download, regardless of Tabs settings in the Options General page. This is different from original behavior, and I have no idea what happened. How do I change back to Tabs rather than window?

All Replies (1)

more options

That is not normal behavior.

You can start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or userChrome.css is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window