Adjusting the refresh rate of Firefox Live Bookmarks?

Does anyone know how to adjust how often Firefox Live Bookmarks (a.k.a. Live Titles) refresh in the toolbar?


Change The Default Reloading Time of Firefox 3 Live Bookmarks Feature.

According to that article you will need to add a new entry,

browser.bookmarks.livemark_refresh_seconds

to configure the refresh rate in seconds.
The default (without that entry in about:config) is 1 hour; that is 3600)

Do read the caveats at the Mozillazine link.