Una excelente extesión

works decently on some sites, but slows my browser down a lot and breaks sites i visit fairly often - on firefox android

As soon as I opened my Google Docs tab, I just easily mustered the feeling to say "woah, that's sick" to myself. This extension is incredibly useful for my eyes. Thank you.

At first worked great, but recently stopped working on most of the sites, where I used it.

Causes the browser to bog down and will cause it to stop working and shut down at times.