The same and also Chrome Sync is basically the most reliable piece of software I ever saw, specially when connected to the mobile Chrome. FF (or anyone else) doesn't do that.
firefox uses firefox sync (which predates chrome sync) to sync your bookmarks, passwords, addons, etc. it also syncs with firefox for android and firefox for iOS...
What does Chrome sync offer that Firefox sync lacks? FF syncs to the mobile version quite reliably for me (though, it does not sync to mobile Chrome if that is the feature that's lacking).
I've been syncing basically the same profile for 6 years now. FF lacked that at the beginning.
The Android FF app is also unusable since it doesn't support bookmark folders when using sync, which I don't even want to know what would do to my bookmarks across devices.
Firefox correctly syncs bookmark folders on both iOS and Android. Always has, as far as I can remember. What they doesn't support is putting your mobile bookmarks into folders on your mobile device; anything you bookmark on mobile lands in a "Mobile Bookmarks" folder. You have to either use tags or organize them using the desktop browser.
