Rated 5 out of 5 stars

Just what I was looking for! I can have a clean preview of just the article, or I can view it on the actual web page. Not bloated, intuitive design. The only interface suggestion I would make so far is to have the "Add feed" button come before the "Add group", since I never use groups but I add feeds quite often. Another minor, picky, tiny point: the icon for the whole add-on (the fox with a book/newspaper) is a bit too complicated and unintuitive when I'm using small icons and it's on my toolbar.

Edit: ooh, just discovered that I don't know how to copy the URL of an article. I tried right-clicking on the article title the right-hand, upper pane (the most intuitive place, IMO), but there's no "Copy" option. This would be a great feature.

This review is for a previous version of the add-on (1.0.1). 

Developer is a fan of short context menus. So to copy the URL of the article right-click on the article title(link) in the lower-right(view) pane and use browser methods. Bookmark this link and copy link location are both on the default Firefox context menu for links. If you\'re thinking of copying the URL, you must be interested enough to have viewed it in the view pane....