Pass on this one. Made my computer run slow and hot. Not intuitive to use which is how I think other people have lost their bookmarks on it; FYI if you get stuck trying to open a group in order to save all the tabs in it, you need to click on any tab WITHIN the group to open the whole group. (Clicking the group itself only offers to delete it.) Still looking for my perfect tab solution. *wistful sigh*