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

Disable F11

  • 5 majibu
  • 1 ana tatizo hili
  • 220 views
  • Last reply by cor-el

more options

Hello,

is it possible to disable F11 key for enabling disabling full screen or set it to another combination like Alt + F11? My problem is, that i am using citrix html 5 client in firefox. Within the citrix session there is a terminal application where F11 is a special key which is needed. But unfortunatly whenever i use it also Firefox switches the full screen and then the citrix client adjusts the resolution which durates a few seconds. And thats really annoying. Using another key in the terminal application is not possible. The APplication uses F1 - F24 by double using the F1-F12 Keys.

regards

Hello, is it possible to disable F11 key for enabling disabling full screen or set it to another combination like Alt + F11? My problem is, that i am using citrix html 5 client in firefox. Within the citrix session there is a terminal application where F11 is a special key which is needed. But unfortunatly whenever i use it also Firefox switches the full screen and then the citrix client adjusts the resolution which durates a few seconds. And thats really annoying. Using another key in the terminal application is not possible. The APplication uses F1 - F24 by double using the F1-F12 Keys. regards

Chosen solution

You can try to paste this code in the Browser Console to see if that helps for you. It should disable F11 in the current window. You need th enable the command line in the Browser Console.

This code works per window for the most recent used browser window, so you can consider to open a new window for this feature.


doc = Services.wm.getMostRecentWindow("navigator:browser").window.document;
if(E=doc.getElementById('key_fullScreen')){E.removeAttribute('keycode');E.removeAttribute('command');}
Read this answer in context 👍 1

All Replies (5)

more options

Keyboard assignments are based on the O/S and only the O/S can change those settings if permitted.

more options

Suluhisho teule

You can try to paste this code in the Browser Console to see if that helps for you. It should disable F11 in the current window. You need th enable the command line in the Browser Console.

This code works per window for the most recent used browser window, so you can consider to open a new window for this feature.


doc = Services.wm.getMostRecentWindow("navigator:browser").window.document;
if(E=doc.getElementById('key_fullScreen')){E.removeAttribute('keycode');E.removeAttribute('command');}
more options

WestEnd said

Keyboard assignments are based on the O/S and only the O/S can change those settings if permitted.

Unfortunatly no. This key assignment is not driven by os. It is driven by firefox itself. I used Vivaldi on linux to test this. In Vivaldi you can disable full screen which also defaults to F11. There i have no more problem in my use case.

more options

cor-el said

You can try to paste this code in the Browser Console to see if that helps for you. It should disable F11 in the current window. You need th enable the command line in the Browser Console. This code works per window for the most recent used browser window, so you can consider to open a new window for this feature.
doc = Services.wm.getMostRecentWindow("navigator:browser").window.document;
if(E=doc.getElementById('key_fullScreen')){E.removeAttribute('keycode');E.removeAttribute('command');}

Thank you cor-el, your tip works like expected. I tested it in Firefox 66.0.3.

It is a bit clumsy as you have to repeat that every time, of course. But thank you anyway!

more options

The Browser Console preserves its command line history, so you can us the cursor Up key to recall previously entered code (i.e. it shouldn't be necessary to paste the code each time you need it).