Another vote for releasing on the mozilla addon platform, the extension fails to sync between different devices because it's not found on the addon site, and in some cases I've had it uninstall because it could not be found there, leading me to search these forums for the installer (the link on the enpass main site is even outdated).
This issue is actually pushing me to look for a replacement for Enpass, as Firefox is the main platform where I use it, and having to randomly install the extension manually a few times a week is getting on my nerves.