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

Wo archive tread sia. Meɖekuku bia biabia yeye ne ehia kpeɖeŋu.

White border on Firefox window when using extended display.

  • 2 ŋuɖoɖowo
  • 2 masɔmasɔ sia le wosi
  • 8 views
  • Nuɖoɖo mlɔetɔ cor-el

Nyanlathotep
Nyanlathotep
more options

I'm using a multi-screen setup at home that consists of a laptop plugged into a monitor, and there's a white outline surrounding three sides of the the browsing window when maximized on the laptop screen, but not while on the monitor. Both displays are the same resolution, and this doesn't occur when the monitor isn't plugged in. Unplugging the monitor and plugging it back in seems to solve the problem, but I'm kind of curious why it happens and if there's anything that I can do to prevent it.

I'm using a multi-screen setup at home that consists of a laptop plugged into a monitor, and there's a white outline surrounding three sides of the the browsing window when maximized on the laptop screen, but not while on the monitor. Both displays are the same resolution, and this doesn't occur when the monitor isn't plugged in. Unplugging the monitor and plugging it back in seems to solve the problem, but I'm kind of curious why it happens and if there's anything that I can do to prevent it.

All Replies (2)

Nyanlathotep
Nyanlathotep Biabia la
more options

Image didn't upload properly in the OP.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Any luck with disabling hardware acceleration?

  • Options/Preferences -> Advanced -> General -> Browsing: "Use hardware acceleration when available"

You need to close and restart Firefox after toggling this setting.

You can check if there is an update for your graphics display driver and check for hardware acceleration related issues.