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Classilla Archive Page

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. This page will be available indefinitely.

Do not report bugs or problems with the browser; they will be ignored.


General Release Notes
Basic release notes generally applicable to most versions of Classilla.
Frequently Asked Questions
The Classilla FAQ, updated and smoothed out.
Byblos Rewrite Engine Manual
Creating stelae to rewrite pages' CSS and HTML to make them work better in Classilla.
Using Classilla with Crypto Ancienne
Installing TLS 1.3 support with Rhapsody, OS X Classic or Power MachTen.
How to Build Classilla from Source
Build instructions if you want to make or modify your own. If you choose to release a modified build, please do not call it Classilla to avoid confusion.


Classilla is provided to you under the Mozilla Public License.

HTTPS downloads, including source code, for 9.3.3 and 9.3.4b are available from SourceForge. Downloads are faster and have multiple mirrors, but TLS 1.1 or better is required. You should use this source with modern browsers and TenFourFox.

Gopher downloads, including source code, for 9.3.3 and 9.3.4b are available from the Floodgap Gopher server. Downloads are slower but this source is accessible by virtually all Classic Mac browsers, including earlier versions of Classilla.

Even older versions and source snapshots are available from the former Google Code Project.

Copyright © 2009-2021 Contributors to Classilla. All rights reserved.
Mozilla, Gecko and Mozilla Firefox are trademarks of the Mozilla Foundation. Classilla and Clecko are trademarks of the Contributors to Classilla.
The Neon Fossil logo and the derivative works in which it appears are copyright © 2009-2021 Cameron Kaiser and appear under a Creative Commons BY-NC-ND 3.0 license. All rights reserved.
The Deer Park Globe icon appears in derivative works under the auspices of the Mozilla Public License.