http://pfpmd7dd5ijt4add2sfi4djsaij4u3ebvnwvyvuj6aeipe2f5llptkid.onion/ui3/ff/750925f887754b97856313f5fdc0614e
I think this allows duplication of bookmarks when e.g. you import bookmarks.html . Probably it is needed for synchronization or some shit. Predefined "guid" values: ["root________", "menu________", "toolbar_____", "tags________", "unfiled_____"] . - an "annos" item looks like: {
"name": "Places/SmartBookmark",
"flags": 0,
"expires": 4,
"value": "RecentlyBookmarked"
} where "name" is the value from moz_anno_attributes.name (the number of possible values is fixed as I understand.)