Earlier quoted context omitted.
Password sync in browser is a piss-poor password manager solution. You should just use a password manager
Why is password sync in browser bad? Care to explain? I hate to have another password application; Dropbox sync t everywhere. Remember Firefox sync encrypts everything before upload. So does chrome.
You are freely executing untrusted code from unknown parties, coming over insecure and unencrypted channels. You really can't be sure who is sending HTTP.
And don't talk about sandboxes. There is a sandbox escape fix in every version of Chrome. This isn't on google, there are way more attackers then fixers.
Basically webbrowsers are under constant concerted attack by every single bad actor out there. And you trust them to sync and secure your passwords?
You have more faith in humanity then I.