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Firefox now has Terms of Use! This'll go over like a lead balloon.

You give Mozilla all rights necessary to operate Firefox, including processing data as we describe in the Firefox Privacy Notice, as well as acting on your behalf to help you navigate the internet. When you upload or input information through Firefox, you hereby grant us a nonexclusive, royalty-free, worldwide license to use that information to help you navigate, experience, and interact with online content as you indicate with your use of Firefox.

mozilla.org/en-US/about/legal/

Update: See below in the thread for their clarification.

MozillaFirefox: About Your Rights
Milly

@mttaggart servo.org ...the old browser engine project Mozilla started, orphaned and then adopted by Linux Foundation Europe. Probably the only third party that might be a future alternative to the american duopoly. But it as everything else good needs developers.

Servo logo
ServoServo aims to empower developers with a lightweight, high-performance alternative for embedding web technologies in applications.Servo is a web rendering engine written in Rust, with WebGL and WebGPU support, and adaptable to desktop, mobile, and embedded applications.