version 4 is missing the "multiple Back" key
In the older versions of Firefox this button was associated with the Back arrow, whereby you could click it and it would allow you to go back to a list of pages you recently visited and not simply back to the last page. This button is missing and I would like to restore it.
Alla svar (2)
Yes, it would be nice to get it back :( In the meantime, rightclick on the back arrow, and you'll get the list.
Click-hold the unified Back / Forward button, or right-click it to get the Back / Forward history for that tab.
Or install this extension to get the old "drop-marker" button restored.
https://addons.mozilla.org/en-US/firefox/addon/backforedrop/