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

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

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Browsing history suddenly dark

I'm using light theme, and had a light browsing history for years until today, see attached screenshot. How do I change it back?

I'm using light theme, and had a light browsing history for years until today, see attached screenshot. How do I change it back?
Attached screenshots

All Replies (6)

Does it still happen in Troubleshoot Mode?

Is this with the Developer Edition or with the Beta 120 release ?

Note that PB mode may use a dark theme.

  • about:config => browser.theme.dark-private-windows

zeroknight said

Does it still happen in Troubleshoot Mode?

No. I've had [4 extensions](https://i.stack.imgur.com/4Rg0Q.png) disabled all, problem persists. Not private browsing. Short of reinstalling, any other steps?

Firefox Developer Edition, 120.0b2 (64-bit)

Athraithe ag OverLordGoldDragon ar

Try changing your theme to the default Light theme.

Go to about:config and make sure toolkit.legacyUserProfileCustomizations.stylesheets is default false.

If by default you mean this, that's what I've been using, yes. That about:config setting is false.