^ Yeah, I have auto-update etc. disabled, I do it all manually. So it's my mistake that I didn't keep track of which most-recent version I liked, and went back to a definitely-known-good version that was fairly "old". I didn't even know you could change certain things in the UI, besides some really trivial ones, I just assumed you needed a "developer's kit" or such to do it. I never really looked into it... So thanks for the info, maybe I could have fixed some of the things that caused me to reject other versions over the years if I had known. I do appreciate that the FF developers made this change in order to speed up the loading process. I really don't have that prob, even with 30+ tabs always open, this PC is extremely fast and is by far limited by my internet speed, and still FF works extremely well. The diff between this PC and my previous ones is amazing, I never thought it would make the slightest diff to web browsing of all things, not exactly a resource-intensive app, in general, least compared to some other stuff (like games). So FF's reputation as a memory hog and being sluggish disappeared from my perception (I built this PC as a "gaming PC", but almost never use it for that).