SeaMonkey
SeaMonkey is an open-source web browser and email client maintained by the Mozilla community. It combines a Gecko-based web browser with an integrated mail and newsgroup client, contact manager, and HTML editor into a single unified application. Historically popular with users who preferred an all-in-one internet suite, SeaMonkey serves people doing both web browsing and email management from a single interface. The project is community-driven following Mozilla's transition to Firefox-only development.
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1 suggestionSeaMonkey development has largely stalled — the project remains technically open-source but receives minimal updates and the community has not prioritised an Apple Silicon native build. Search results and Mozilla's bug tracker indicate the X86_64 Intel build has not been maintained to work reliably with recent macOS releases (Ventura and later have been reported to cause crashes), and there is no evidence of any planned Universal Binary or native arm64 version. Given that Apple will remove Rosetta 2 support entirely in macOS 28 (September 2028), SeaMonkey's Intel-only build will stop launching on that release. The practical alternatives are to migrate to a actively maintained email and browsing solution: Thunderbird (from Mozilla) for email with Safari for browsing, or Microsoft Outlook for email combined with any native browser. Both run natively on Apple Silicon and receive regular security and feature updates.
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