Try looking
Edit> Preferences> Privacy|Security tabs.
Right click on an empty spot on the toolbar. There is a "Customise" menu and window....mostly drop'n'drag. Toolbar cluster can d'n'd to some extent too.
For cookies, there might be better (more customisable) ways but I've just stuck on
Self-Destructing Cookies.
Set parameters for cookie retention; whitelist the sacrosanct; other options.
If you go that way the only undocumented 'feature' is the removal of all cookies upon installation...bit of a pain but it only happens once.
You can turn off notification it's doing the job after 'interesting' turns to 'irritating'.