[HAF] Porting Firefox WebExtensions to XUL/UXP Format

I've been using DeathByCaptcha API alongside Firefox with the plugin https://addons.mozilla.org/en-US/firefox/addon/recaptcha-solver/ - - however, I recently shifted to Pale Moon, and am having trouble with this plugin since it has been written using WebExtensions API.

I'm looking for a freelancer who is familiar with the XUL/UXP platform (ie anyone who has worked with firefox extensions before 2018) to port the Recaptcha solver plugin into XUL/UXP xpi format, so I can use it with Pale Moon browser.