Compare software

SeaMonkey vs Reframe: catalog facts
SeaMonkey	Reframe
Free The software is free under its open-source licence. Hosting, hardware and external…	Free Free and open source under the MIT licence.
Windows, macOS, Linux	Windows, macOS, Linux
It is the continuation of the old Mozilla Application Suite, so browsing, mail, news and page editing live…	Modern Chromium rendering, so current sites work Several retro skins switchable at runtime
It tracks an older Firefox codebase, so web compatibility and security hardening trail the current browsers.	A nostalgia project rather than a privacy or productivity browser Small project with few contributors
Downloadable app	Downloadable app
Open source	Open source
License: MPL-2.0	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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