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.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Firefox always opening in full screen

  • 1 reply
  • 0 have this problem
  • 5 views
  • Last reply by cor-el

Elliott J Bush
Elliott J Bush
more options

Whenever I open Firefox in MacOS Ventura (13.0.1) it opens in full screen. I want it to open a bit smaller so I can see my desktop behind it. Full screen is fine for a laptop, but I run it on a 26" widescreen monitor. How can I set it so it only covers, say, 3/4 of the screen?

Whenever I open Firefox in MacOS Ventura (13.0.1) it opens in full screen. I want it to open a bit smaller so I can see my desktop behind it. Full screen is fine for a laptop, but I run it on a 26" widescreen monitor. How can I set it so it only covers, say, 3/4 of the screen?

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Can you exit Full Screen mode (press F11 or Fn + F11 to toggle; Mac: Command+Shift+F) ?

You can try to rename/remove xulstore.json in the Firefox profile folder with Firefox closed.

You can use the button on the "Help -> More Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page (Root directory).