The Access Firefox Project provides accessibility tools and resources for Firefox end users with visual impairments, and for those without the best visual acuity.
While Access Firefox is not an official Mozilla project, nor is it affiliated with the Mozilla Foundation or Mozilla Corporation, it was created, and is maintained by volunteers from several different Mozilla communities.
Add-on developers (for both themes and extensions) are always needed to create new accessibility related add-ons and to help maintain and update older ones. We also welcome Firefox accessibility content writers/contributors.
We've recently started creating add-ons for Thunderbird as seen below.
Please contact Ken Saunders at AccessFirefox . org if you are interested in contributing to the project.