We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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 108.0.2 (64-bit) now won't open full screen.

more options

Firefox has inexplicably begun opening in a narrow screen by defalt. I want to set it to opening full screen by default. It's a pain to have to click twice or press F11 for full screen use. How please?

Firefox has inexplicably begun opening in a narrow screen by defalt. I want to set it to opening full screen by default. It's a pain to have to click twice or press F11 for full screen use. How please?

All Replies (1)

more options

Toggle Full Screen keyboard shortcut: Press the F11 key. Note: On computers with a compact keyboard (such as netbooks and laptops), press the fn + F11 keys.

Regards, Will