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

Why is there blank space showing desktop background above and below my browser window? How to fix this?

more options

I recently installed Firefox on a new PC and this latest version shows either the desktop background or the content of the open window behind my browser above and below the browser window, to the right of the menu bar and tabs. This is something I've never seen before and it's annoying. I want things back the way they were, when my entire screen was browser window, except for the button bar at the bottom of the screen. I tried the factory reset, no help. Tried full screen. Not what I want. How do I get rid of these window backgrounds around the browser?

I recently installed Firefox on a new PC and this latest version shows either the desktop background or the content of the open window behind my browser above and below the browser window, to the right of the menu bar and tabs. This is something I've never seen before and it's annoying. I want things back the way they were, when my entire screen was browser window, except for the button bar at the bottom of the screen. I tried the factory reset, no help. Tried full screen. Not what I want. How do I get rid of these window backgrounds around the browser?

All Replies (3)

more options

Try to disable transparency in Windows.

Right click in a free space on your desktop.
Left click on Personalization.
There are four options at the bottom of the screen, choose "Window Color and Appearance".
Select a border color
Uncheck: "Enable transparency"

more options

Hi,

Thanks for the information. Didn't fix my problem, it just enabled me to change the color of the background. I still see the background above and below the browser window. Any other ideas that might fix the problem?

more options

Is there a problem with the maximize function? Firefox should fill the screen if you click the maximize button.

If it doesn't, maybe it's running with some odd settings in your Firefox shortcut, or another unusual startup configuration (e.g., sandboxing software).