What are some alternatives?
When comparing Ungoogled Chromium and Firefox Quantum, you can also consider the following products
Brave - Fast and secure, ad and tracker blocking browser.
Google Chrome - Google Chrome is a fast, secure, and free web browser, built for the modern web. Give it a try on your desktop today.
Opera - Opera is a browser with innovative features, speed and security.
Lightbeam for Firefox - Mozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.
Pale Moon - Pale Moon is an Open Source, Mozilla-derived web browser available for Microsoft Windows and Linux, focusing on efficiency and ease of use.
Chromium - Chromium is the open-source browser project from which Google Chrome takes its source.