How to blacken all sites in Firefox

Question

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?

Just to satisfy my own curiosity, why would you want to do that? — Pylsa, Jun 28 '10 at 10:06

score 1 · Answer 1 · answered Jun 28 '10 at 09:32

1

This should do the trick.

tools > options > content > colors > background

also uncheck the "allow pages to choose their own colors".

answered Jun 28 '10 at 09:32

James T

score 1 · Accepted Answer · edited Mar 20 '17 at 10:17

1

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.

edited Mar 20 '17 at 10:17

Community

answered Jun 29 '10 at 16:00

Tobu

2 Answers2