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Why doesn't Dark Reader add-on work on

  • 4 replies
  • 2 have this problem
  • Last reply by David

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Original question, Why doesn't DarkReader add-on work on home page?

Answered with: Internal pages are protected from addons. But you can simply select the dark theme in ≡ -> Customize.

Possible reasons not to work:

  1. The poster was an alien
  2. 42 (See no. 1)
  3. Mozilla devs just hate us. When we (have to) come for answers here, from a comfortable dark web - whether using Dark Reader, or some other means - they purposefully BLAST us with bright white pages so that we will never, ever use Firefox again and uninstall it right away and move on to something else (less idiotic).
  4. Seriously, though, see the answer in context was an alien.

So, who can tell us how to get around this, please? We get it, whatever: is, somehow, a local page - or, something - and it can't be styled, but how do we get around this BLINDING WHITE LIGHT? Thank you so much.

^^ addons.about ("addons.about-scheme") can be styled, Library (Downloads) can, Options (about:preferences) can and also about:about and a bunch of abouts can, also - only this website is locked like this, to torture people, why...

EDIT: Screenshots attached illustrate that, as suggested in the first thread from years ago, Dark Theme had been applied and it makes no difference.

Attached screenshots

Modified by nostromov

All Replies (4)

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The question, you're referring to, was about Home Page.

The reason, why mozilla pages are locked against styling is different -> I presume that a lock is set in about:config.

Modified by TyDraniu


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Extensions do not work on several Mozilla websites including the Add-ons website ( and SUMO ( and some websites for security reasons and also not on builtin about pages. A lot of extensions that inject scripts orb style sheets in the webpage mention the Add-ons website, but there are more restricted domains.

If you want to inject style rules then you can use userContent.css as a workaround.


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TYVM cor-el, but that's -actually- the issue, as I'm unable to figure out how to configure a userContent.css to style these pages?


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Hi, I'm confused as to make all of my visited pages including actual firefox 'system' pages a dark color as the dark reader add-on doesn't have any effect.


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