This Question remained unanswered at our meeting. Google
gave this result however I do not have that line in my
"about:config" so I am unsure if it works or not:


This does not clear my browsing history in Firefox 3.0???
Posted by: Jon at August 31, 2008 6:19 AM

Its true. Clearing private data in Firefox 3 won't clear the
history in the URL bar. To do this, do the following:

If you don't want RichResults
keep track of where you went, in Firefox you need to enter
about:config
and then scroll down to:
browser.urlbar.maxRichResults
and change the default. The default setting is 12 and if you
want nothing, you enter 0.