KeeFox is available as a Firefox add-on from the official Firefox add-ons website. Please read the add-on description and then install it as you would any other add-on.
This is the version most people will want to use. It is stable, reliable and will receive periodic updates with new features and improvements once those changes have been well tested.
This version will usually be stable and contain new features and improvements more quickly than the stable version. In some cases the addon may not work as expected so this version is recommended for people that are confident using computers. For anyone that does want to help KeeFox get even better, subscribing to the beta channel is a very effective way to help because you will be able to alert us to any problems with new versions and prevent the majority of KeeFox users suffering.
Click the button below, look down the page for the section called “Development channel” and install the version listed in there.
You can see all versions - including development snapshots that haven't yet been promoted to "beta" status - on the Github releases page.
Development snapshots could contain significant bugs but will also be the first to receive new features and bug fixes. Also note that you may not be automatically updated to new versions of the addon until you manually install a beta or stable version so be careful to not get left behind!
The latest source code is available on github: https://github.com/luckyrat/KeeFox