kustodian/extended-statusbar

Firefox addon which adds a statusbar with speed, percentage, time and loaded size (similar to Opera's one)

Extended Statusbar

Extended Statusbar is a Mozilla Firefox extension which adds a statusbar with speed, percentage, time and loaded size (similar to Opera's one)

You can install/download it from https://addons.mozilla.org/en-US/firefox/addon/extended-statusbar/