FAQ Question #279
says there's a pop-up to confirm copying the post to Facebook ... but I don't see it.
You can choose to update your Facebook mini-feed anytime you post a public entry to LiveJournal. Enable this option on the Viewing Options page (Additional Privacy Settings > Facebook). You'll need to be logged into Facebook in order for notifications to be added to your mini-feed.
I'm logged in to Facebook and I've checked my settings are right but I don't post as Public by default, so if I change this post from Friends-Only to Public ... nope, no pop-up.
Ok, let's try changing my default to post as Public and make a new post...