That page is just missing one critical thing: 4. Migrate my extensions.
It would be great if they developed a graph mapping Chrome extensions to Mozilla equivalents. Then the user could confirm installation of the ones with 1:1 parity, like LastPass, allow users to select similar extensions, or skip installing an equivalent.
There are some Chrome-Exclusive extensions that keep me hooked. That and Firefox’s Storage inspector is terrible, there isn’t a native way to clear localstorage during development.
Have you looked into Chrome Store Foxified? It automates the conversion, signing, and installation of extensions from the Chrome Web Store into Firefox. https://github.com/Noitidart/Chrome-Store-Foxified (It wasn’t working for a while but it seems that a fix might have finally been discovered.)