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!

ابحث في الدعم

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

Cannot cancel dark mode in Firefox windows

  • 5 ردود
  • 2 have this problem
  • 4 views
  • آخر ردّ كتبه cor-el

more options

I cannot get Firefox to stop using dark mode. I've tried uninstalling and reinstalling, checking my Mac's settings (dark mode is not enabled), and Firefox still shows dark mode in webpages (like Google News). It makes it really hard to read the page without reading glasses.

Is there a way to turn this off? It is really irritating.

I cannot get Firefox to stop using dark mode. I've tried uninstalling and reinstalling, checking my Mac's settings (dark mode is not enabled), and Firefox still shows dark mode in webpages (like Google News). It makes it really hard to read the page without reading glasses. Is there a way to turn this off? It is really irritating.
Attached screenshots

الحل المُختار

Hey, you cant try this:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button promising to be careful or accepting the risk.

(2) In the search box above the list, type or paste ui.systemUsesDarkTheme and pause while the list is filtered.

(3) If there is no variable like this, add a new one and set its number value to 0.

I suspect you would need to quit/restart Firefox to update the internal reading. Does it work now?

Read this answer in context 👍 2

All Replies (5)

more options

الحل المُختار

Hey, you cant try this:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button promising to be careful or accepting the risk.

(2) In the search box above the list, type or paste ui.systemUsesDarkTheme and pause while the list is filtered.

(3) If there is no variable like this, add a new one and set its number value to 0.

I suspect you would need to quit/restart Firefox to update the internal reading. Does it work now?

more options

No, I'm sorry it didn't. The background remains black despite setting the value to "true" or "false" (there isn't a value of 0.

more options

ben-marko said

No, I'm sorry it didn't. The background remains black despite setting the value to "true" or "false" (there isn't a value of 0.

Oops, the preference got created as a Boolean (true/false) type, but it needs to be a Number type. You can use the trash can at the right end of the row to delete the preference, then select Number before clicking the + button and assign the value of 0 using the form that opens.

more options

Yes! Deleting the value and then inserting a new numerical one worked. It changed the color from dark to light. Thank you!

more options