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How do I change a third-party light mode theme to a third-party dark mode theme?

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I installed a theme from the Firefox add-on browser but it makes my browser light mode. I'm wondering how can I change it to dark mode but keep the theme.

I installed a theme from the Firefox add-on browser but it makes my browser light mode. I'm wondering how can I change it to dark mode but keep the theme.

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Hi, lizikk7

I hope this helps you. You can follow below guidelines to get the dark theme option.

  • Open the settings and click personalization.
  • Then click on the colors button and you will get the dark theme option.
  • Settings>>Personalization>>Colors>>Dark