The Golden Age of Browsers is not all that golden. Ron McElfresh explains:
Apple makes Google the default search engine in Safari and collects a few billion dollars each year from the search engine giant just for that privilege. See? I’m getting mixed signals about Apple’s devotion to user privacy.
Regarding the simple Erase browser history button on Firefox Focus for iOS:
Mozilla does not carry over that simple way to erase a browser’s history to Mozilla on iOS or macOS. To erase Firefox browser history on iOS you have to tap the Menu, tap Settings, scroll down and tap Clear Private Data, then tap Clear Private Data again (assumes you’ve already turned on delete for Browser History, Cache, Cookies, Offline Website Data, and Tracking Protection.
It’s just as bad on Firefox for Mac.