Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

Making the window full screen on macos hides the dock and menu bar.

wilsmi
wilsmi
more options

I find that when I make a video in Firefox 66 go full-screen that the menu bar and dock in MacOS 10.14.4 become hidden. I have looked at https://support.mozilla.org/en-US/kb/restore-menu-bar-firefox which confirms this behavior, but I am wondering how I can turn this feature off completely? This behavior does not occur with Safari or Chrome and it was a bit jarring the first time it happened to me.

In the below image, a Firefox window is full-screen on a second monitor.

I find that when I make a video in Firefox 66 go full-screen that the menu bar and dock in MacOS 10.14.4 become hidden. I have looked at https://support.mozilla.org/en-US/kb/restore-menu-bar-firefox which confirms this behavior, but I am wondering how I can turn this feature off completely? This behavior does not occur with Safari or Chrome and it was a bit jarring the first time it happened to me. In the below image, a Firefox window is full-screen on a second monitor.
Attached screenshots

All Replies (1)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

Hmm, full screen should take over the entire screen, but only on the same display. I think you're saying that you have two displays, and when you go full screen on one display, it also affects the other display where you expect to still be able to use the menu and dock. That is very strange and I can't recall seeing it mentioned before.

I don't know whether this is a common issue with your version of MacOS or could be related to specific graphics hardware/driver software or settings. Hopefully other Mac users will have feedback on that.