halilsen,

Sure, what I said isn't specifically written in the support articles (the articles aren't as blunt as my explanation), but if you can't "see" that Sync isn't intended for use with one device, there is a gap in your comprehension of the subject matter.

the-edmeister,

Thank you! This proves my point but if you can't "see" it you'll never "see" it. So, I'm dropping this argument.

jscher2000,

There was no second device per se however I formatted my laptop and give a different device name in the FF--sync. In a way, yes the bookmarks has gone when the second device is sync'ed.

Make sure to check the Sync options when you set up Sync and want to keep the data on the Sync server.

• click the "Sync Options" button at the bottom to select what to sync (Sync Options only affect the first sync)

Select this choice if you want to restore data from the Sync server:

• "Replace all data on this device with my Sync data"