I've stopped using SiteAdvisor and uninstalled it. I can't figure out why my browsing has slowed so much when SiteAdvisor is active and I suppose no one else has any ideas either, at least on this forum. Read my post 'Slow browsing in Firefox'. Oh, well; all good things must come to an end, or so they say. I'll check back from time to time and see if anything has changed. Maybe a later version will correct the problem.