Definitely 5* Rated 5 out of 5 stars

Many thanks for the improvement. It is now my reader of choice. Thank you.

This review is for a previous version of the add-on (1.2.0). 

UK verdict Rated 4 out of 5 stars

I like!! So easy to use it does'nt matter all the instructions are in German. It would be even better if you could filter the Firefox subscribed feeds. (I know you can with the setup but it is clunky!).

This review is for a previous version of the add-on (0.9.9). 

Feed Filter added, English Instructions added

In top of the news you will now find an box to select single feeds.
The newssitter.com site is now in English too.
I would be happy when you switch your rating to 5 stars.