I’m currently using Firefox 3 RC2 FireFox 3 and absolutely loving it – I love the new tags feature, the overall faster browsing experience, everything…
Well, almost. One thing that I find quite strange is the location of the control for jumping back several pages:

I remember the first time I needed to go back several pages and saw this and sort of looked at it like “hmm, seems like you can jump ahead several pages, but how do I jump back several pages?” But after clicking on the little control, it turns out that to go back several pages at once, you click on the control next to the forward link:

Unintuitive indeed. Would it not make sense to have this control be next to the back button, maybe something like this?

Here, the location of the control maps to our mental model of where we want to go, as in backwards.