ICloud – Delete iCloud bookmark only from a specific computer

Since it's a folder, hold down the Command and Option keys, then drag the folder off the Bookmarks Bar. You'll get a confirmation dialog saying "Are you sure?" Just click the Delete Folder button in the dialog.

Holding the Command and Control keys keys down gets you a contextual menu that allows you to edit the name of the folder, edit its contents (jumps you to the Bookmarks window to do that), delete it, copy it, and a few other things.

It seems that it may be tied to the Fetch New Data setting in Mail, Contacts, Calendars.

When I change that setting to Push, the bookmarks are sent out straight away.

What I don't understand is why the Photo Stream pushes out changes immediately, even if 'Fetch New Data' is set to 'Every 15 Minutes', but the Bookmarks (which appear to have nothing to do with 'Mail, Contacts, Calendars', are not.

Later:

I've just seen the "Advanced" setting in "Fetch New Data". This seems to have a manual override

With Fetch New Data set to "15 min", (and Push is Off), and iCloud set to "Push", I expected to have the bookmark pushed out straight away.

But this doesn't happen: I also have to turn the main "Fetch New Data" setting to Push, in order to have the bookmarks updated immediately.