Yes, but they’re also not extensible as far as I know, which is the much bigger issue with them. If you don’t find yourself needing extensions that’s just fine but I rely on several to make my web browsing experience better or more useful.
I miss cosmetic filters from µBO and should implement something like Privacy Redirect, but vertical tabs work more easily (they don’t require hacking around user.css to disable horizontal ones, though there are no tree-style ones), there’s a simple Stylus alternative, userscript support, JS whitelisting/toggling with a modifier-free binding, and of course native vi/Pentadactyl-like bindings which make extension-provided ones feel viscerally painful (they’re not eviscerated whenever a page is in the process of loading or unloadable, and searching stays incremental).