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!

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

Wo archive tread sia. Meɖekuku bia biabia yeye ne ehia kpeɖeŋu.

Why still black background? I picked light for layout.css.prefers-color-scheme.content-override + ui.systemUsesDarkTheme

  • 3 ŋuɖoɖowo
  • 0 masɔmasɔ sia le wosi
  • 6 views
  • Nuɖoɖo mlɔetɔ zeroknight

StackExchange
StackExchange
more options

You can see below my choices for - `1` for light, in `layout.css.prefers-color-scheme.content-override` - `0` for light, in `ui.systemUsesDarkTheme`. - "Light" website appearance AND theme().

But why some websites still darken and blacken background ? Examples are https://superuser.com, https://softwarerecs.stackexchange.com.

This mishap DOESN'T happen in Troubleshoot Mode. But I don't have the Dark Reader extension.

Cross-site Backup

[https://imgur.com/a/QQRu6K7 You can see below] my choices for - [https://support.mozilla.org/en-US/questions/1360536#answer-1465159 `1` for light, in `layout.css.prefers-color-scheme.content-override` ] - [https://support.mozilla.org/en-US/questions/1359881#answer-1465837 `0` for light, in `ui.systemUsesDarkTheme`]. - [https://support.mozilla.org/bm/questions/1366505#answer-1479986 "Light" website appearance AND theme](). '''But why some websites still darken and blacken background ? Examples are https://superuser.com, https://softwarerecs.stackexchange.com.''' This mishap DOESN'T happen in Troubleshoot Mode. But I don't have the [https://addons.mozilla.org/en-US/firefox/addon/darkreader/ Dark Reader extension]. [https://superuser.com/q/1821906 ''Cross-site Backup'']
Screen ƒe photowo kpe ɖe eŋu

StackExchange trɔe

All Replies (3)

zeroknight
zeroknight
more options

This could be caused by an extension like Dark Reader or userContent.css. Does it still happen in Troubleshoot Mode?

StackExchange
StackExchange Biabia la
more options

No, this mishap DOESN'T happen in Troubleshoot Mode. But I don't have Dark Reader, or any similar extension.

Why would my userContent.css cause this mishap? Since installing Firefox, I've never opened — let alone edited — userContent.css. How do I redress this mishap?

StackExchange trɔe

zeroknight
zeroknight
more options

Disable all your extensions and make sure toolkit.legacyUserProfileCustomizations.stylesheets is default false in about:config then restart the browser.