Rated 4 out of 5 stars

May I suggest adding some options, like different settings for individual sites. Just the option to not run on individual sites would be enough. I like the automatic mode but on some sites it whitens light gray text when the background is white and blackens text when the background is black.

This review is for a previous version of the add-on (1.4.7).  This user has a previous review of this add-on.