YESSSSSSSSSSSSSSSS!!!

The Stop Button, Reload Button, and Indeterminate Progress Spinner all represent exactly the same thing -- whether the page is loading shit. You only need one, with a lag between stop and reload to avoid accidental fail.

They also finally put the progress bar in the address bar, another Safari innovation.

I've used TinyMenu + StopReload + Fission, along with shoving the few UI elements I want into the "File" toolbar to get this UI in FF for years.