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Chromium vs Firefox Developer Edition: catalog facts
Chromium	Firefox Developer Edition
Free Free and open source. There is no paid tier and no vendor selling it.	Free Free to download and use.
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	Newest developer tools before they reach stable Firefox Builds for Windows, macOS and Linux, including ARM64
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 software, so it can be less stable than the regular release Not supported on Windows 8.1 and older or macOS 10.14 and older
Downloadable app	Downloadable app
Open source	Open source
License: BSD-3-Clause	License: MPL-2.0
No account needed	Not stated if an account is 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 23, 2026

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