搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

Learn More

How to force light mode on regardless of theme

  • 2 回覆
  • 2 有這個問題
  • 1053 次檢視
  • 最近回覆由 nick151

more options

I have a custom theme on Firefox called Charlies Red. Up until two days ago, Firefox would always consider it to be in light mode (which I prefer) whenever I'd use it. Now, however, it's in dark mode, and the only way I can return to light mode is to give up my custom theme and instead choose Light as a theme, which I don't like as much as Charlies Red.

Is there a way to force light mode on regardless of which theme I use? One source said I could go to about:config and create a ui.systemUsesDarkTheme number, setting it to 0, but I tried it to no avail and so deleted the number.

I have a custom theme on Firefox called Charlies Red. Up until two days ago, Firefox would always consider it to be in light mode (which I prefer) whenever I'd use it. Now, however, it's in dark mode, and the only way I can return to light mode is to give up my custom theme and instead choose Light as a theme, which I don't like as much as Charlies Red. Is there a way to force light mode on regardless of which theme I use? One source said I could go to about:config and create a ui.systemUsesDarkTheme number, setting it to 0, but I tried it to no avail and so deleted the number.

被選擇的解決方法

You can change this pref on the about:config page from 3 to 2 to revert to the Firefox 94 behavior.

  • layout.css.prefers-color-scheme.content-override [dark:0, light:1, system:2, browser:3]

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

To go beyond that you need to use CSS code in userChrome.css.

從原來的回覆中察看解決方案 👍 1

所有回覆 (2)

more options

選擇的解決方法

You can change this pref on the about:config page from 3 to 2 to revert to the Firefox 94 behavior.

  • layout.css.prefers-color-scheme.content-override [dark:0, light:1, system:2, browser:3]

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

To go beyond that you need to use CSS code in userChrome.css.

more options

cor-el said

You can change this pref on the about:config page from 3 to 2 to revert to the Firefox 94 behavior.
  • layout.css.prefers-color-scheme.content-override [dark:0, light:1, system:2, browser:3]
You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue. To go beyond that you need to use CSS code in userChrome.css.

That solved it! While changing the layout.css.prefers-color-scheme.content-override from 3 to 2 still kept Firefox in dark mode (which is strange, assuming 2 causes it to match Windows, which I have in light mode), the good news is that changing it to 1, which you said is light, fixed the problem instantly. Thank you!

由 nick151 於 修改