Look what Curtis just did:

Curtis Bartley is the newest member of the Firefox front end team and, to get his feet wet, he made the world a better place by fixing a very old bug. And its 7 duplicate bugs.

Specifically, he set it up so that resources which are referenced in source are now clickable links. Want to know what that external javascript does? Click the link, and it will be loaded in the source viewer. Likewise CSS. Maybe you clicked “View Source” only to discover you were looking at a frame set, and actually wanted the source for a frame – that works too.

And yes, back and forward keyboard shortcuts work. And yes, both relative and absolute links work. And yes, you can have this in a tab instead of a separate window, either by sticking view-source: on to the front of your URLs (see?), or by finding one of the addons that does it for you.

Way to go Curtis, keep ’em coming!