I kinda wish the address bar in any browser had an "advanced" popout menu that's basically a curl frontend with all of its bells and whistles. Basically move that functionality from the dev tools.
Sadly most major browsers go the opposite direction, removing more and more "advanced" functionality and information from the address bar (e.g. stripping the protocol, 'https://', from the URL)
Firefox on Android has recently started to hide the URL entirely when using the search-from-addressbar feature. Instead of the URL of the search page, it shows the search terms, which is redundant since the terms are already shown by the page itself.