Apparently, Simon Willison's surfing habit is similar to mine, judging from his entry on On blogging technique and better tabbed browsing.

I've always found the problem of losing the "back" button particularly annoying when opening multiple tabs in Mozilla Firebird via middle-clicking (which opens pages in a new tab). Jesse Ruderman's "go to referrer" bookmarklet solves this bit of annoyance for me, at least until this is implemented directly into Firebird or as an extension.