I was genuinely excited for the item of secure, open source bookmark syncing between browsers.

But a combination of the recently reported issue #328 (Not syncing completely) and bug #265 (Local data refreshed, redo previous unsynced changes) which remains unfixed 9 months after it was reported renders this product completely unusable.

I suspect if it works for you then it's tremendously useful, but my own search for reliable bookmark syncing continues.