Waterfox

Waterfox is forked from Firefox and it is available for 64-bit Windows, macOS, Linux and Android. Its goals are to be fast and ethical while keeping the browser open and customizable. What makes this browser a little different is that privacy is a big deal to its developers. Waterfox strips out telemetry, and the project states that it does not collect or sell any personal data. The browser has built-in ad blocking and private, anonymised DNS lookups over Oblivious HTTP, which separate the user's identity from the sites they look up. Waterfox is developed by BrowserWorks, a company owned by founder Alex Kontos, who started the project in 2011.

Another useful side of Waterfox is compatibility. It uses the same Gecko engine as Firefox, so most websites work as expected and most Firefox add-ons (WebExtensions) can be installed. Unlike Chrome, Waterfox is not built on Chromium, which keeps it an alternative to the many Chromium-based browsers.

Waterfox is a multi-process browser and adds its own tab features: private tabs can be opened next to regular tabs in the same window, tree tabs show pages in a hierarchy, and a status bar shows the address of the link under the mouse. The interface can be customized with several browser designs and color palettes, and different search providers can be selected. Waterfox Classic, a separate edition that kept support for old XUL and XPCOM extensions, is no longer developed; its final release came out in 2022. Current Windows builds are available for x64 and ARM64 processors and require Windows 10 or later.

Waterfox gives you a Firefox-compatible browser with built-in ad blocking and no telemetry or data collection.

In conclusion, Waterfox is a privacy-focused alternative to Chrome and Firefox for users who want Firefox compatibility without telemetry. The browser is free and open source, new releases with security fixes appear regularly, and it can be tried alongside an existing browser.