You Opera people might like this

[Leshy]

Just little things, like being able to move the tab bar below the navigation icons and other stuff.

Opera's interface is far more easily customizable than Firefox's, although it may not be as apparent at first glance.

The reason you don't seem to be able to get the tab bar below the navigation icons, is because the address bar is attached to the page you are viewing, not to the rest of the interface. This is because Opera's tabs aren't actually just tabs, but seperate windows. The default setting mimics the Firefox behaviour, though.

Is there no way to achieve what you want then? Yes, there most certainly is and it's quite easy. All you have to do is turn on the Main Bar, remove it's contents through right-clicking on the icons and selecting "Remove from Toolbar", and copy the contents of the Address Bar to the Main bar by Shift-Clicking on the icons and address window and dragging them to your now empty Main Bar. Turn off the Address Bar through View -> Toolbars (or by hitting Ctrl+F8), and you have the interface the way you want it.

I've personally been using Opera since version 7 came out, and find it to be superior to Firefox. I paid for my license somewhere last year and haven't regretted it for a moment :)