Join us to show up for other Firefox users 🦊. Earn fun badges and Mozilla swag vouchers! Find out more: https://mzl.la/askafox150

Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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

Èròjà atẹ̀lélànà yii ni a ti fi pamọ́ fọ́jọ́ pípẹ́. Jọ̀wọ́ béèrè ìbéèrè titun bí o bá nílò ìrànwọ́.

Can't play 1440p or 4K video on YouTube

  • 1 èsì
  • 8 ní àwọn ìṣòro yìí
  • 105 views
  • Èsì tí ó kẹ́hìn lọ́wọ́ imrazor
  • A ti fi pamọ́ fọ́jọ́ pípẹ́

imrazor
imrazor

For some reason, Firefox won't allow me to select any resolution over 1080p even for videos that are explicitly denoted as 4K. Chrome will allow me to play these videos at 1440p or 4K, but Firefox maxes out at 1080p. I have a 30" 1600p monitor and I'd like to use the full capabilities of my monitor without having to resort to Chrome.

For some reason, Firefox won't allow me to select any resolution over 1080p even for videos that are explicitly denoted as 4K. Chrome will allow me to play these videos at 1440p or 4K, but Firefox maxes out at 1080p. I have a 30" 1600p monitor and I'd like to use the full capabilities of my monitor without having to resort to Chrome.

All Replies (1)

imrazor
imrazor Ìbéèrè olóhun

So here's an interesting twist. I tried Firefox in a Windows 8.1 Pro x64 virtual machine, and it was able to play 1440p video with no issues. Is this a Windows 7 issue?