That menu item was moved to the Web Developer menu under the orange Firefox button and in the Tools menu. It is also available in the main contextual menu - right-click on the web page that you want to view the page source of.

OK, Thanks for the information.

Reos

Can you tell me, is that why the Web Developer Toolbar isn't now available as an addon it seems? Because it's now automatically incorporated into the browser? Thanks.

chrispederick's Web Developer extension is available here.
https://addons.mozilla.org/en-US/firefox/addon/web-developer/

thanks. found it now.

Even though I've been updating my Beta versions (now in FF 8), I just noticed this stupidity now, because most of the time I still use FF 3.6. (Bring back the d*%n Status Bar! Then I'll use the new versions regularly.)

After more than 7 years of having "Page Source" be the most useful thing in the View menu (since at least version 0.8 back in 2004), these numbskulls decide that the View menu shouldn't provide all the viewing options available?