Thank you for bringing joy back to my eyes. Seriously, this work you have done is greatly appreciated. Best add on I have ever found.

Is is really a very useful addon, the only problem with it is that it slows down page loading. It is painfully so sometimes. Works better under chrome, i hope the developer will cope with this problem under firefox, too.

It's not perfect, sometimes I have to disable it on a page to fix errors and sutch. But it works fine for most sites and I don't like browsing without it.

Perfect! Reduces eye strain and probably reduces electricity consumption.

This is the app you are looking for.

At the beginning, I got a problem with the add-on. But Alexander took the time to fix it. It is really nice to know that he is there to help you in case something go wrong. I totally recommend the add-on.