[mhd]

One feature Camino ha and that I really miss in other browsers is that it displayed whether files in its download window were still there. That sounds rather trivial, but made it a perfect "file inbox", where I could quickly see whether I still needed to review/move a file.

And the fact that it was more in sync with the OS X desktop experience than Firefox (back in the days; got better) and Safari (brushed metal)...

Of course nowadays, a hierarchical tab sidebar is my one "exclusive" killer feature, and as of yet only Firefox has that (via add-ons).

[freehunter]

Chrome does that download behavior as well. You can see if a file has been removed from the downloads folder right from the downloads tab in Chrome.