Firefox 4 deleted the feature to the right of the "go forward one page" button" that showed all the websites I'd visited in the chain from Home to the present one.
There was a little arrow in Firefox 3 to the right of the "go forward one page" arrow that I could click and it would display a list of the websites I'd viewed since I left "home". That is missing in Firefox 4. It is very tedious to have to "go back one page" over and over until I finally get to Home [or another earlier website]. Some websites won't even let me "go back" beyond their own websites, so I have to close Firefox altogether and start over, to get to a previous website. I really miss that little arrow!!
Opaite Mbohovái (1)
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/