I think Firefox has built in zooming of any image on the net (or maybe I got that from an extension).
Whatever the case, I love it.
Some things on the net are tiny (like weather maps etc.) that I want to zoom in on. Firefox is great for that.
I did discover that if you select "Full Screen" - to undo it you hit/mash/click the "Windows - Min/Max" button - top right - between the minimize and close all tabs "x".
That's another good point - Netscape has had tabbed browsing but hit that "X" in the corner and ALL your tabs are gone - Firefox at least asks "Are you sure (dummy) you want to close xx tabs?" ;-)
Lastly - I had Version 0.9 - the 1.0 D/L took a couple of minutes and installed over the old version without a reboot. Yee haw!