Classilla browser

This page was last updated at: May 31, 2026

Classilla was a Desktop web browser that ran on Mac OS Classic. It was developed for about 12 years before being discontinued.

While Classilla is now discontinued, if you need a modern browser for Mac OS 9, check out the MacSurf browser.

Classilla was an updated release of Mozilla for Mac OS 8.6 and 9 offered from 2009 to 2021. It is now unsupported. No additional official releases are planned.

— Classilla developers

About Classilla

Browser URL www.floodgap.com/software/classilla/
Development Status Discontinued
The developers have announced that the browser won't be developed any more
Launched 2009
Discontinued 2021
Operating System Mac OS Classic
Device platform Desktop
Rendering Engine Custom
It used a modified version of the Gecko layout engine called Clecko
Fork of Mozilla
Retro Operating Systems Classilla targets an older operating system
VPN Browser has in-built VPN
Wikipedia Article https://en.wikipedia.org/wiki/Classilla
Download Classilla Downloads

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