Hidden settings

If you type about:config into the address bar, you get a screen with all the browser settings and can change them by doubleclicking. Since 0.7, you can also filter the list to get at specific settings quicker.

Decreasing render delay

MozillaFirebird? often feels snappier because it has the nglayout.initialpaint.delay option (see "Hidden settings" above) set to around 250ms, as opposed to Mozilla's 500-1200ms. This controls the delay between receiving intial page data and repainting, and is designed to give the web page layout time to settle so it doesn't jump around. By setting it lower, MozillaFirebird? feels slightly quicker than Mozilla. Some people set it to 0.

Restore plain (non-feeling lucky) Google search in the addressbar

Change the value of the keyword.URL setting (see "Hidden settings" above) to __http://www.google.com/search?&q=__.