No sync please.
Nobody implements proper context switching and privacy from yourself. The only kind of privacy anybody even acknowledges the existence is from 3rd parties.
I don't have a Firefox account and I'm not signed in into any browser on any account. Why does it try to sync things without my permission?
It doesn't. (The interface for enabling it is even a little anxiety-causing.) It doesn't add extra icons anywhere either.
You have some additional software doing that. Do you use a fork from the Mozilla code?
The devices I mention are all in the same local network so maybe they discover each other.
Anyway, there's a post in this thread that explains perfectly why I (or that poster) don't need or want sync. Basically my different machines are used for different purposes so there's no reason to mix bookmarks or move browsing history around. As for credit card numbers... what is this insanity? I don't save credit card numbers anywhere.
I have no idea what you are supposed to expect there.
Call answering from my laptop is the only thing that ever made me rush out and buy a new iPhone that supported it :)