Firefox is meticulous about using the right application to display a MIME type, almost to a fault. Rather than displaying documents and movies in the browser when it would save time, it loves to launch Office or a media player. Sometimes we just want to see whatever we’re downloading directly in the browser. Not only is this a time-saving choice, it saves on system resources by not launching an external application.

Today’s Firefox addon of the day, the aptly-named Open in Browser (beta addon; registration required), will do just that. By adding a new option in the Firefox download menu, you now have the choice to launch certain universal file types directly in Firefox. These files include ASCII documents, movies which can use a browser plugin, images, webpages, and more.