I asked a question in my previous post, about how to hide drop-down history of Firefox 3.6.16 address bar. The solution is
In Preferences, on the Privacy tab, there is a settings called When using the location bar, suggest:. Setting it to Nothing appears to affect both actions you mentioned: auto-complete while typing, and click the drop-down arrow.
I was wondering if there are some shortcut keys to switch between Nothing and History and Bookmarks?
If no, is it possible to customize as such?