This is an old post. The information it contains is probably out of date or innacurate
This is a post that was written a long time ago and is only being kept here for posterity. You should probably look up more recent blog posts related to the subject you are researching
If your firefox address bar is getting a bit slow and laggy as it tries to find suggestions, I found one single about:config tweak totally sorted it out for me.
browser.urlbar.search.timeout = 100
browser.urlbar.search.timeout = 10
To do this, open a new tab and type about:config
Then agree to the thing that says you know what you are doing and in the filter bar at the top type:
you can then double click on the value (set to 100 by default) and change it to whatever you want. I tried 10 and that seems to work great for me, but you might want to experiment.