IronFox
IronFox is a free and open source, privacy and security-oriented web browser for Android, based on Mozilla Firefox.
Phoenix
Phoenix is a suite of tweaks and advanced configurations for Mozilla Firefox, designed to put the user first - with a focus on privacy, security, freedom, and usability.
Dove
Dove is similar to Phoenix - except instead of Firefox, Dove is tailored to Mozilla Thunderbird.
BadBlock
Image by FlyD under the Unsplash License
BadBlock is a collection of comprehensive domain blocklists - designed in various formats to strengthen your content blocker of choice.
Nasty content of all kinds are covered - including advertising, analytics, tracking, fingerprinting, data brokers, and more.