Quetta

Quetta is where most Kiwi Browser users ended up. When Kiwi stopped development in January 2025, it left a gap: it was one of the few Android browsers that could install desktop Chrome extensions. Quetta already could, and it has since passed a million installs on Google Play. Extensions come straight from the Chrome Web Store or Microsoft Edge Add-ons, though Quetta warns that some built for desktop screens only half work. The iPhone app has no extensions, and the Windows and Mac versions are still in beta.

Beyond extensions, it leans towards media. An ad and tracker blocker is on from the first launch, with fingerprinting protection alongside it, a media sniffer saves the videos on a page in the quality you choose, and YouTube keeps playing in the background. There is no AI assistant, and no ads of its own.

The trade-off is transparency. Quetta is closed source despite promising more than once to publish its code, and its website names no team; UK company records list its sole director and majority owner as a Chinese national living in China. Usage analytics also go to Google Analytics until you switch them off, which is why it scores 3 for privacy despite blocking so much by default. If you want desktop extensions on an Android phone, Quetta does it with the least fuss; for sensitive browsing, Firefox for Android also runs add-ons and is open source.