Quote:
at the moment I can't think what I use it for

I was going to say that the only thing that I can think of that I'd ever use it for is after pasting a URL into the location bar. But I'd press Ctrl-V for that under Windows, so hands already on the keyboard, thus, Enter. Maybe for pasting a URL under Unix, since that's usually a mouse operation, but then I'd just paste into the browser window directly and not bother with the location bar at all.
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Bitt Faulk