Rated 4 out of 5 stars

Overall, I like it; however, I wish that it would only bring up the preview when I hover the mouse over a given bar; as things stand now, it also provides the preview whenever a new tab is opened even when I'm not yet ready to preview the new tab. And sometimes the preview obstructs something else that I'm in the middle of doing.

This review is for a previous version of the add-on (1.1.5).