Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm using Firefox to read sites that contain a lot of black text on white background (much like this one). What is the simplest way to give Firefox the option to switch the font and background color of a site so that it ends up as white text on a black background?

share|improve this question
up vote 1 down vote accepted

Select Tools > Options > Content

Then the "Colours" button.

Select white for the "Text" colour and black for the "Background", not forgetting to clear the "Allow pages to choose their own colours, instead of my selections above" option.

alt text

You might need to make sure that the "Use system colours" option is cleared as well.

share|improve this answer

Stylish is your friend. It is the best (and the only?) tool for this.

You can find a lot of styles for Stylish on the following site:

share|improve this answer
Methinks this is a lot more easy and flexible than Tools > Options > Content. – Nathaniel Apr 4 '10 at 21:18
Are you sure? ;) Try managing it / disabling it, etc. – Shiki Apr 4 '10 at 22:36

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .