"about:memory" is probably great, but it is too detailed for someone who is not familiar with FF internal architecture. The way I see it it is mainly useful for

"about:memory" is probably great, but it is too detailed for someone who is not familiar with FF internal architecture. The way I see it it is mainly useful for FF developers. I like "about:addons-memory" (available if you install https://addons.mozilla.org/en-US/firefox/addon/about-addons-memory/ https://addons.mozilla.org/en-US/firefox/addon/about-addons-...).