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Firefox Developer Edition vs Chromium: catalog facts
Firefox Developer Edition	Chromium
Free Free to download and use.	Free Free and open source. There is no paid tier and no vendor selling it.
Windows, macOS, Linux	Windows, macOS, Linux
Newest developer tools before they reach stable Firefox Builds for Windows, macOS and Linux, including ARM64	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
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	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
Downloadable app	Downloadable app
Open source	Open source
License: MPL-2.0	License: BSD-3-Clause
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 21, 2026

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