Rated 3 out of 5 stars

great theme , lose 1 star for menu background being white making it hard to read, lose another star for the high contrast black, two suggestions use slightly smaller icons and lower the contrast slightly or even try a gloss black and it would become a very popular dark theme. If you like dark themes check out these "https://addons.mozilla.org/en-US/firefox/collection/662d873a-d719-ea5c-0723-70104d9958e1".

This review is for a previous version of the add-on (1).