PUBLIC MARKS from decembre with tags webextension & "Firefox Quatum"

A giant table, I think it would be important to also include whether an old extension is no longer possible (deprecated), or someone just hasn't written an alternative yet, or whether there exists a planned API addition that would make it possible. Lots of alternatives are also missing a few features, and it would be good to know what's missing and why (impossible or just not yet implemented)The list is certainly not giant yet, but here's a start (based on responses from this post)/ https://www.reddit.com/r/firefox/comments/6i1fu2/webext_equivalents_to_legacy_addons/°