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

Why do I suddenly have to push "Windows + F11" to full screen when it's been "function + F11" since I got this laptop a year ago?

  • 2 replies
  • 1 has this problem
  • 5 views
  • Last reply by cor-el

more options

Got this laptop almost a year ago, and it took me a while to figure out I have to push "function" AND "F11" to toggle in and out of full screen; my last laptop, you just had to push "F11". However, sometime between today and yesterday, it suddenly stopped toggling. I finally figured out that if I push the "Windows" button (command button?) and "F11", it works. Why would it suddenly change the function of the buttons like that? It doesn't really matter as long as A button works, but it's annoying that it would just change like that out of nowhere. And "function" made more sense, since the key serves both as a "fast forward" key and an "F11" key, so "function" is logically what would switch between functions.

Got this laptop almost a year ago, and it took me a while to figure out I have to push "function" AND "F11" to toggle in and out of full screen; my last laptop, you just had to push "F11". However, sometime between today and yesterday, it suddenly stopped toggling. I finally figured out that if I push the "Windows" button (command button?) and "F11", it works. Why would it suddenly change the function of the buttons like that? It doesn't really matter as long as A button works, but it's annoying that it would just change like that out of nowhere. And "function" made more sense, since the key serves both as a "fast forward" key and an "F11" key, so "function" is logically what would switch between functions.

All Replies (2)

more options

I think this is a keyboard setting, and not a Firefox setting, but I can't be sure. Does Firefox recognize other function keys like F3 for search and F6 for focusing the address bar or do those also require the function and/or Windows key now?

more options

Do you have multiple keyboard layouts installed?

It is possible that the keyboard layout has been switched by accident by using the key sequence to rotate the keyboard layout.

Windows remembers the keyboard layout setting per application and you may have changed the keyboard layout by accident via a keyboard shortcut.