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!

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

Cari Bantuan

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.

Pelajari Lebih Lanjut

Utas ini telah diarsipkan. Silakan membuat pertanyaan baru jika Anda membutuhkan bantuan.

After viewing YouTube video full screen on secondary monitor, new windows always open secondary monitor *not* main monitor.

  • 2 balas
  • 2 memiliki masalah ini
  • 4 kunjungan
  • Balasan terakhir oleh cor-el

Toggie101
Toggie101
more options

As the question. This is a problem that persists through restarts and reboots.

I've had this problem before in previous versions of Firefox, but could correct it by viewing a YouTube hosted video full-screen on the main monitor, close the window then restart FF, then new windows would once again open on the main monitor. Unfortunately this quick fix no longer appears to work.

I've tried disabling all add-ons and then restarting FF, but the same behaviour happens.

As the question. This is a problem that persists through restarts and reboots. I've had this problem before in previous versions of Firefox, but could correct it by viewing a YouTube hosted video full-screen on the main monitor, close the window then restart FF, then new windows would once again open on the main monitor. Unfortunately this quick fix no longer appears to work. I've tried disabling all add-ons and then restarting FF, but the same behaviour happens.

Semua Balasan (2)

iamjayakumars
iamjayakumars
more options

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.


Further information can be found in the Refresh Firefox - reset add-ons and settings article.

Did this fix your problems? Please report back to us!

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

You can check for problems with the localstore.rdf file.

Try to disable hardware acceleration in Firefox.

You can check for problems with current Flash plugin versions and try these:

  • disable protected mode in Flash 11.3 and later
  • disable hardware acceleration in the Flash plugin