FF syncing appears to lack luster
About FF sync-ing feature:
As a test I deleted one book mark from FF desktop. Then I did a sync. I was expecting for that bookmark to be restored from the data that had been previously uploaded to the FF account. But it did not.
So the question begs to be asked, Why doesnt FF account have backups of our bookmarks (and other data) that we can download onto our desktop when needed?