Firefox extension for total page size?

Question

Does anyone know a good Firefox extension to control the overall page size, including all additional files. I know that there is one that controls the size of the viewstate in the bottom line and is invaluable as an ASP.Net developer, but I'm curious that it controls the entire size - sort of like the Net Firebug tab.

Answer 1

I found the Extended Statusbar extension that does what I wanted. It has speed, size, etc. Very simple in the bottom panel.

Answer 2

The web developer toolbar does this with two clicks:

Information → View Document Size

!

Answer 3

YSlow ( ).