> Even with 2, 3 or 4 extensions, it's unlikely that you're going to experience a breakage, and if you do, it's likely that you'll find a replacement.
This is simply not true as there had been many popular UI-centric extensions that just can't be replicated as webextensions due to lack of API support. "Advanced UI features belong in extensions, not in main" had been the Firefox mantra for many years and negativity about 57 is the logical consequence.
Which are the type of extensions that change so much about the browser that average users just won't use them.
When I discovered Classic Theme Restorer, Tab Mix Plus and similar, I was already a semi-pro user and I still found them intimidating.
There were a lot of checkboxes and they changed around a lot of things and I didn't yet know how to create a separate Firefox profile where I could've actually just wildly tried different options without the fear of something breaking irreversibly.
This is simply not true as there had been many popular UI-centric extensions that just can't be replicated as webextensions due to lack of API support. "Advanced UI features belong in extensions, not in main" had been the Firefox mantra for many years and negativity about 57 is the logical consequence.