为提升您的使用体验,本站正在维护,部分功能暂时无法使用。如果本站文章无法解决您的问题,您想要向社区提问的话,请到 Twitter 上的 @FirefoxSupport 或 Reddit 上的 /r/firefox 提问,我们的支持社区将会很快回复您的疑问。

搜索 | 用户支持

防范以用户支持为名的诈骗。我们绝对不会要求您拨打电话或发送短信,及提供任何个人信息。请使用“举报滥用”选项报告涉及违规的行为。

详细了解

Browser window bleeding onto extended monitor "white bar"

  • 6 个回答
  • 1 人有此问题
  • 1 次查看
  • 最后回复者为 tahwos

more options

Extended desktop, two different PCs, vertical layout.

Upon opening Firefox a white bar appears across the bottom of the top screen and the only way to get rid of it is to hit F11 (Fullscreen) twice. Minimizing, maximizing, restoring all have no effect - only taking it from a normal window to Fullscreen view (no menu bar or tabs), then back to a normal window works.

It happens on every new window opened and it doesn't matter which display it is opened on, the bar will be there if moved to the bottom screen, until F11 is pushed for that instance of Firefox twice.

This has happened before and it would seem to go away on later updates, but it is currently visible on every computer I have that has one display above another.

Extended desktop, two different PCs, vertical layout. Upon opening Firefox a white bar appears across the bottom of the top screen and the only way to get rid of it is to hit F11 (Fullscreen) twice. Minimizing, maximizing, restoring all have no effect - only taking it from a normal window to Fullscreen view (no menu bar or tabs), then back to a normal window works. It happens on every new window opened and it doesn't matter which display it is opened on, the bar will be there if moved to the bottom screen, until F11 is pushed for that instance of Firefox twice. This has happened before and it would seem to go away on later updates, but it is currently visible on every computer I have that has one display above another.
已附加屏幕截图

所有回复 (6)

more options

Bar still present in Firefox 79

more options

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or userChrome.css is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Safe Mode start window
more options

Same behavior in safe mode, Same behavior with or without HA, Same behavior with default theme, Don't have a userChrome setup, Same behavior with no extensions.

I promise, I tried them all, one at a time and all together.

Literally every Windows 10 PC I've setup this year, with vertical extended desktop does this.

My Windows 7 rigs did this too, depending on which update I had at the time. It would be there during one release, then gone for the next, then back again on a later release.

The bar is present immediately after installing a fresh copy to a new machine, that's never had FF before.

Was hoping someone with dual monitors could replicate, or at least express the same annoyance.

It only happens with Firefox and it only happens across the bottom of the top display.

由tahwos于修改

more options

Maybe try a different Windows theme to see if the current theme is causing this.

more options

Changing the theme does nothing... have you tried replicating the issue?

more options

Can someone with two monitors please try to replicate this?