Waterfox Classic is a legacy web browser for older systems and those that require use of XPCOM and XUL extensions, and it is based on an older version of the Gecko platform which allows the development of XPCOM and XUL add-ons. Waterfox Classic is open-source and MPL2 licensed that is forked from Firefox and developed by System1. Waterfox shares core features and technologies like the Gecko browser engine and support for Firefox Add-ons with Firefox.
Download | Classic (Installer)
Download | Classic (Portable) 2021.04
