Editors' Note: The Download Now link will prompt a local download of the Firefox extension. To install the extension directly, open the file using your Firefox browser.
A little inspiration, a few hours of diligent work, and here is Azerty III, for Firefox. It retains most of the icons from the second of the Azerty series, but it also introduces some new ones; notably, those in the options window. This creation was inspired by the work done on Azerty for Thunderbird.