Rated 5 out of 5 stars
Small fix for those who see dials stop to update (yes, works for FF 18.0a1 x64 too). Go into Speed Dial options, make backup if none (Speed Dial settings - Actions - Export Dials, Settings and so on). Next step: uninstall Speed Dial, restart browser, install Speed Dial, go to Speed Dial options and import previously saved backup (Speed Dial options - Actions - Import Settings). Voila - it works.
upd.: looks like 'one time help' action - dials updates only when 'Import Settings' performing. Not a fix at all.