Enable Dark Mode on Every Web Page

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Ion Saliu

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Feb 27, 2026, 1:04:37 PMFeb 27
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Enable the Dark Theme on Every Web Page 

Unfortunately, many websites will remain in the hurtful black-on-white format. There is good news. We can instruct the browsers to render every webpage in the dark theme. The following tactic seems to have worked correctly. 

•     In a browser's address box (the url line), type: 

chrome://flags
or
edge://flags
or
brave://flags 

In Search flags, type dark. In the Auto Dark Mode for Web Contents section:
Choose Dark (instead of Default). 

•     In Firefox, choose Settings, then on the General page scroll down to Language & Appearance. Choose the Dark option, then restart the browser. 

•     Changing Safari Theme (Light/Dark Mode)
Open System Preferences: Click the Apple menu in the top-left corner and select System Preferences.
Go to General: Click on "General".
Choose Appearance: In the "Appearance" section, select either "Light", "Dark", or "Auto".
Dark Mode: Selecting "Dark" will switch Safari (and other apps) to Dark Mode.
Close System Preferences: The changes will take effect immediately. 

•     To enable dark theme in the Opera browser, open the browser, go to Settings, then find the Appearance section and select the Dark theme option within the Themes settings.
You can also access theme settings directly through the Easy Setup button on the start page.

•     For Opera GX, after selecting Dark in the theme settings, you can further enable "force dark pages" to apply the dark theme to web pages.

Much more:

     Display in Browser Characters in Any Alphabet | Enable Dark Theme on Every Web Page, in Any Windows App

 

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