Is there any way by which we can blacken all the sites which we open with a BLACK background color?
I have tried Stylish addon for Firefox. But I want to do it for many other sites like Google News, Google Maps and even Stack Overflow or Super User?
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This userstyle is enabled for all pages by default: myfavolours. Related one two three. I've asked about using colour profiles to achieve something similar, but that hasn't been done yet. | ||||
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This should do the trick. tools > options > content > colors > background also uncheck the "allow pages to choose their own colors". | |||
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