Turn Autocomplete on or off Tap the menu button next to the address bar: Tap Settings. Go to Search. Tap URL Autocomplete. For Top sites: autocompletes popular sites around the Web. For Sites You Add: Lets you add your own sites to autocomplete. Tap Manage sites to add a custom URL. Tap SAVE when you're done.

Regards, Diana

My Firefox can autocomplete the URL, but I want it to also autocomplete the whole URI path like Google Chrome

Enter about:config in the address bar and set browser.urlbar.autoFill.adaptiveHistory.enabled = true.