Use one of these:

• Tools > Web Developer > Page Source (Cmd+U)
• Right-click on a web page to open the right-click context menu and select Page Source

Although my issue is different than yours, but I have version 7 and the "view source code" is still where it has always been. As described above it should still be there, but if it is not for you, try uninstalling Firefox and then re-installing a fresh version.

CẢM ƠN NHIỀU - THANK YOU VERY MUCH

Both these worked but the location of the page source command has changed with version 7.

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?

Just hit CTRL-U.

You can also find it on the context menu (RIGHT-CLICK on the page), or under the menus "WEB DEVELOPER/VIEW PAGE SOURCE"