Added by niklasg@userstyles, Created: Jan 18, 2015, Updated: Apr 09, 2016
  • With the style applied
  • developers documentation 1
  • Addon detail
  • developers documentation 2


Simple dark 'skin' for Mozilla pages.

More info
Makes, and dark by applying a simple yet very effective css filter.

I've browsed through the top ten of google "" (including add-ons and developers) and the result on all pages was somewhere between decent and very good.

The only drawbacks are some inverted background images and increased cpu-usage and possibly slight unresponsiveness on pages with many :hover-effects.

If you want to un-invert any elements, try the filter that un-inverts the img's.

If you have any issues with this style, please open a ticket at

Update 2016-04-09:
Fix style for the new amo header.

Update 2015-10-15:
Merge pull/1.

Update 2015-08-05:
Uninvert persona previews.

Update 2015-05-23:
Excluded style from iframes on about:addons.

Update 2015-01-23:
Tweaked filters a bit to emulate higher gamma to increase contrast in former light, now dark, areas. Screenshots are not updated.

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