Firefox addon update to work with FF Quantum or create new exact addon

Hello, I'm looking for someone that can make an update to a Firefox addon to work with the last version of Firefox (Quantum) since the original developer doesn't reply nor updates his addon. It's an automatic form filler with separate profiles and Import and Export option. You can install it in an old version of Firefox and see how it works. I've tried other addons but I like how this one works, and I have already too many profiles created. I'm not sure if this is possible... maybe you can create a new addon with the same functionalities that this addon has. I understand that this will take more hours to develop. This is the addon: [login to view URL] Please let me know if you have a solution for this. Thanks in advance. Mel