If you right-click on Chromium's back arrow, you get the drop-down menu.

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Ubuntu 11.04 played with the idea of using Chromium as the default
browser, but stuck with FF because the next version is said to be much
faster, but then most users usually slow it down with add-ons. For me it
comes down not to speed, but convenience. I find Chromium too
streamlined for my way of working. I really miss not having the ability
to skip back through web pages I have visited. I can do this from the FF
dropdown but Chromium makes me click back through each a page a time
because it has no dropdown list. There is a perceptible difference in
speed, but not enough that I worry about it.