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Chromium vs Firefox Nightly: catalog facts
Chromium	Firefox Nightly
Free Free and open source. There is no paid tier and no vendor selling it.	Free Free and open source.
Windows, macOS, Linux	Windows, macOS, Linux
The upstream codebase every Chromium browser is derived from, useful for checking whether a bug is Chrome's or… No Google account integration, sign-in or usage reporting built in	Earliest access to new Firefox features Updated daily
Official builds do not auto-update, so a Windows or macOS install goes stale and insecure unless you replace… No Widevine DRM in most builds, so paid streaming services will not play	Pre-release builds can be unstable Not suited as a main browser for most people
Downloadable app	Downloadable app
Open source	Open source
License: BSD-3-Clause	License: MPL-2.0
No account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.