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Remove dark mode in private browsing

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Private browsing now displays in dark mode, which I find stressful and unreadable.

How can I made Firefox permanently stay in light mode even in a private window?

Private browsing now displays in dark mode, which I find stressful and unreadable. How can I made Firefox permanently stay in light mode even in a private window?

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Try to set this pref to false on the about:config page.

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

You can open the about:config page via the location/address bar. On the warning page, you can click "Accept the Risk and Continue" to open about:config.