On iOS, the content blocking model has never exposed one’s browsing history to the blocking extensions. Whether it’s Firefox Focus or some other content blocker

On iOS, the content blocking model has never exposed one’s browsing history to the blocking extensions. Whether it’s Firefox Focus or some other content blocker enabled in Safari settings (you can enable more than one), the extensions can only provide a set of URL patterns that the underlying Safari browser engine (used by Firefox Focus and every other browser on iOS) will match with requests and block. No information —about which URLs were visited or matched with the blocking rules or which ones were blocked — is ever known to the content blocker app/extension.