I would like a Firefox Extension that allows me to:

1. View Source in New Tab (View Rendered Sources comes close, but I don’t need all the rendered gunk)
2. Toggle between whether a tab renders the HTML source or displays the raw HTML source. Presumably with a right-click “View Source in Tab” option. Then something like “View Rendered HTML in Tab” to toggle back. An ability to see the rendered JavaScript would be nice too.

This post first appeared on From the Belly of the Beasts, a weblog from some of the people who build O’Reilly websites.