AMOLED Black theme от VerifiedThug

The ultimate AMOLED black theme on the Firefox Addon Store! Pure black theme that will save your battery and your eyes!

Rated 5 star with 1000+ active users on Google Chrome Web Store
Get it on Google Chrome - https://chrome.google.com/webstore/detail/blac-amoled-pure-black-am/gmojgjlmlhclfdfheokkcjngkbiidkaf