I gave it a try for six months or so, and it turned out to be visually distracting and seemed to be purposed to being a substitute bookmarks -- I am not really

I gave it a try for six months or so, and it turned out to be visually distracting and seemed to be purposed to being a substitute bookmarks -- I am not really sure what the intent of it was, despite all that I've read about it on various places Mozilla developers hang out. Anyway, I just didn't appreciate how visually distracting it was, how it searched through my bookmarks and other areas I'd prefer that it not mess with, and how it also slowed down the browser significantly while the algorithm is working. Since I have about 7,000 bookmarks, it was a noticeable slowdown. I disabled it from searching bookmarks, and then disabled it altogether, and was much happier with the old behavior (as much of it as can be rescued, anyway).