Honestly, works exactly as it was intended and very well at that. If it weren't for two issues, I would give this five stars. These issues are that when the add-on is first installed, it opens up a side bar with your bookmarks and other useful things. After looking around, very shortly, I found that you have to click the icon on the top right to open the multi-view. For a lot of people, this wouldn't be an issue, but for new or inexperienced computer users, this could be confusing and may result in them uninstalling because they think that it isn't working. The next issue being that when I'm trying to install another extension using the side view, the extension doesn't want to install. Other than these issues though, the add-on works very well as I am using it to type this review. Good job!