Firefox 4 Awesome Bar gets a bit of Googleesque 'Instant' magic
Mozilla Labs points out that you can also use it for 'temporal' information, such as weather and stocks news, or a Web comic. Type the first two letters of your favorite comic into the Awesome Bar, and the comic automatically loads. Read it, then simply press Esc and the Web page you were looking at before instantly re-appears.
Of course, you could use the same technique to check Download Squad regularly, too.
Download Prospector - Instant Preview add-on (only for Firefox 4)