It is not exactly snitch-ware but I feel ya bro, I feel ya. I hate everything you just mentioned. I use Tor browser which is basically a somewhat outdated Firefox platform and has the same exact annoyances.
So let us set up your browser proper like:
click tools, options, advanced, general and unclick "check my spelling as I type" (I really hate that one)
click tool, options, privacy, location bar and choose the option "nothing"
You can actually delete the search engine from your Navigation Toolbar by clicking View, Toolbars and customize. I don't because Torbrowser comes with 9 different search engines in the toolbar which is kinda handy. You can easily clear your history there after using it by right clicking inside the toobar and choosing the "Clear Search History" option.
I would also suggest: click tools, options, security and unclick the the "Block" options. It is not a browsers place to tell me where to surf.
Also when it comes to "never remember history" you need to manually clear that at least once and make sure every option is checked.
Browsers are always competing with one another and sometimes the end results seems to be a bunch of unneccesary crap added on. I also suggest CCleaner which is small and handy piece of software which keeps your computer uncluttered with your recent browser history and other windows spyware. A lot of computer techs actually suggest this to increase computer performance.
www.piriform.com/cleaner