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

This thread was archived. Please ask a new question if you need help.

how to maximize streaming resolution in Firefox

MontanaAndy
MontanaAndy
more options

looking for a way to get maximum streaming resolution in Firefox. I have updated my pc and monitor to handle Ultra HD resolutions, but cannot find what resolutions are supported by Firefox 68 (under Win 7, 64-bit) or how to change. I have read that Firefox is limited to 720P, and do not know if this is still so. Where do I find the current resolution and can it be changed, or do I need a specific add-on? Thanks for any information you can share!

looking for a way to get maximum streaming resolution in Firefox. I have updated my pc and monitor to handle Ultra HD resolutions, but cannot find what resolutions are supported by Firefox 68 (under Win 7, 64-bit) or how to change. I have read that Firefox is limited to 720P, and do not know if this is still so. Where do I find the current resolution and can it be changed, or do I need a specific add-on? Thanks for any information you can share!

Chosen solution

Hi MontanaAndy,

I came across an Add-on which automatically sets your YouTube to high definition : Auto HD/4k/8k for YouTube™ {link}

There is also an alternative to set your resolution in YouTube to 4k by adjusting this value to true in about:config : media.mediasource.webm.enabled (this could impact your battery life)

Supporting article : Playing 4K (Ultra-High Definition) YouTube videos in Firefox {link}

You can also set Firefox to enable hardware acceleration which makes use of your graphics processor :

  1. Click the 3-bar menu button
  2. Click Options
  3. In General, scroll down to Performance
  4. If check marked, uncheck Use recommended performance settings
  5. Check Use hardware acceleration when available

Firefox's performance settings {link}

You can also adjust the content size of your screen if you like :

  • Holding ( CONTROL + ) increases the size
  • ( CONTROL - ) decreases the size
  • ( CONTROL 0 ) resets to the default

See also : how do i change the screen resolution {link}

Hope this helps!

Read this answer in context 👍 0

All Replies (1)

WMagicModel
WMagicModel
more options

Chosen Solution

Hi MontanaAndy,

I came across an Add-on which automatically sets your YouTube to high definition : Auto HD/4k/8k for YouTube™ {link}

There is also an alternative to set your resolution in YouTube to 4k by adjusting this value to true in about:config : media.mediasource.webm.enabled (this could impact your battery life)

Supporting article : Playing 4K (Ultra-High Definition) YouTube videos in Firefox {link}

You can also set Firefox to enable hardware acceleration which makes use of your graphics processor :

  1. Click the 3-bar menu button
  2. Click Options
  3. In General, scroll down to Performance
  4. If check marked, uncheck Use recommended performance settings
  5. Check Use hardware acceleration when available

Firefox's performance settings {link}

You can also adjust the content size of your screen if you like :

  • Holding ( CONTROL + ) increases the size
  • ( CONTROL - ) decreases the size
  • ( CONTROL 0 ) resets to the default

See also : how do i change the screen resolution {link}

Hope this helps!