I'm pretty sure Mosaic was my first, although it may have been Lynx. Prior to all of that I was a heavy gopher user. My first browser I used as a developer was Netscape Navigator Gold. As for Chrome, I use it mainly out of habit. It's quite possible that other browsers would be better for development, but I don't want to retrain.
If I do it right (or wrong?), I can have several search fields on the screen, and none of them will find what I'm looking for. Also, all of the snap states are too crowded to be useful, so I have to pop it out onto another monitor.
You can't beat the speed of not moving your hands to another device or to touch the screen. However, on poorly designed software or web forms that don't have a proper tabbing order, you might need a click or two. I use a trackball instead of a mouse, and this can make adding that click almost as fast as using the keyboard, because you can click the button without fear of accidentally bumping the cursor.