Finally there's an add-on for general well-being of screen-staring tribe aka programmers, designers, developers, researchers, editors and all those who spend good part of their day/night staring at computer screen(s). I just love it's customizability, especially different profile per website. It's highly recommended to protect your eyes in case of prolonged computer usage.

Useful extension that lower down the overall brightness of websites. Simple on & off option to disable or enable the main feature of the extension. Memory usage is around 1MB to 1.5MB typically for me as it seems to increase with each active web page loaded affected by the extension.

super.......

this add on completely messes up the layering on websites like soundcloud but it works for the most part on other websites

but problematic addon | often affect other tabs