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

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.

Screen Resolution keeps changing when viewing streaming programs (Netflix/Disney+/etc) in Firefox

p.macdougall
p.macdougall
more options

When ever I am on streaming sites such as Netflix or Disney+ or even various other news websites, my screen resolution seems to jump up a notch. Running a PC with WIn7 64bit and a Sony Bravia TV for a monitor. 1920x1080 is the resolution that I normally use. I have never encountered a screen resolution change outside of using Firefox.

When ever I am on streaming sites such as Netflix or Disney+ or even various other news websites, my screen resolution seems to jump up a notch. Running a PC with WIn7 64bit and a Sony Bravia TV for a monitor. 1920x1080 is the resolution that I normally use. I have never encountered a screen resolution change outside of using Firefox.

All Replies (2)

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

Check that you do not run Firefox in compatibility mode or with reduced screen resolution. You can open the Properties of the Firefox desktop shortcut via the right-click context menu and check the "Compatibility" tab. Make sure that all items are deselected in the "Compatibility" tab of the Properties window.

p.macdougall
p.macdougall Question owner
more options

None of the items were selected when I opened the Properties. I noticed that the context menu was showing Windows Vista, I changed to WIndows 7, restarted FIrefox and tried again with a streaming site. Same issue.