Rated 5 out of 5 stars

Great add-on, I use it constantly. I have one issue: Keeping track of what you've read when using multiple machines is a problem. If marking an article as read in Brief ALSO marked it as read in the Firefox live bookmarks then XMarks could share this info across machines (by saving history)... Other than that, this is a great add-on.

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