Mind though, that this effort will almost certainly die off after June 26, 2018. That's the EOL date of Firefox 52 ESR, meaning the actual end of Mozilla suppor

Mind though, that this effort will almost certainly die off after June 26, 2018. That's the EOL date of Firefox 52 ESR, meaning the actual end of Mozilla supporting legacy extensions. This sort of cynic statement is based on this legacy extension system having been a major maintenance burden for Mozilla, so now one developer or even a small team trying to take that over, I can hardly imagine to work out.