It was my favorite too, that's why I revived it. I'm glad to see it saved someone's efforts to hack it into working and you will never need to do that again bc I removed the limitations it used to have. Unless Mozilla make any fundamental changes to the browser, you shouldn't have to hack it ever again. Quite frankly I didn't expect that anyone would use it.
AMO isn't exactly a proper site to contact devs, you can use the github support page, if you have questions or ideas and I'll see what I can do.