Works well. great when you're sometimes working in bright sun.

Not working for firefox 139. Sets to "customized" instead of automatic, not respecting browser's original configuration. Seems to be out of maintenance so I have to change to 1 star.

Works great, toggle high contrast setting. Allow it to remember settings for a site would be a great addition.

Useless

Somehow, this extension degraded contrast on multiple websites when the high contrast switch was turned OFF.
See https://daverupert.com/about/ for example

This is so much easier than having to change settings on PC. All I needed was to be able to change a page from all black with white font to white with black font. This is perfect and I do not have to reset anything. :)

Switches ALL TABS to high contrast. This makes it not very useful IMO, since it would make more sense to just switch to high contrast in settings.

Fantastic!
Please add a customizable keyboard shortcut option, so anyone can bind this to every button they like

Simple High Contrast mode switcher. Perfect for e-ink devices like the Pinenote I'm writing this review on. Light on resources compared to CSS modifying addons. Open-source, code available on github.