Mentioned earlier, the GreaseMonkey script which pushes starred items from Google Reader into Delicious.
As many web marketing programs are managed through web apps, a little browser hackery can go a long way towards increasing the efficiency of the web marketing team.
Yahoo has started campaigning Firefox users to change their default search engine from Google to Yahoo. Big big money at stake.
John Chow points out that Google pays FireFox for clicks generated from the FFox search box, and projects FFox may eventually become Google’s largest traffic source.
Rant: Why does viewing a PDF through IE or FireFox cause the browser and often the desktop to come to a grinding halt for several seconds, even on a decent computer?