Adblocker is also an extension, right? If you dislike trackers, you can install Disconnect. You could also install uBlock Origin, some of whose subscriptions block tracking.
I set a download directory, and that is what gets used. If I go to download something, the download directory is what is selected (although I could change it in the download dialog).
Please bring back "Unsorted Bookmarks"! They were extremely helpful in organizing my Bookmarks. "Unsorted Bookmarks" was one of the reasons I chose Opera Browser and abandoned Google Chrome, because Google Chrome don't offer "Unsorted Bookmarks".
+1
You then still have to designate saving into that folder and that's the problem. With Unsorted, you just slammed a heart button and that was it. Firefox had the same thing and i loved it.