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FOSS replacement for Firefox Focus?
(monero.town)
F-Droid is an installable catalogue of FOSS (Free and Open Source Software) applications for the Android platform. The client makes it easy to browse, install, and keep track of updates on your device.
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Firefox regular does that. There's a setting to clear history on close. Then it adds a quit button to the menu. You can pick how much is deleted. History, cookies and anything else.