Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

Mozilla サポートの検索

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.

詳しく学ぶ

このスレッドはアーカイブに保管されました。 必要であれば新たに質問してください。

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?

すべての返信 (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).