How do you use forward and back button on mouse and use "zoom" in web browser.

Ok so apparently this forum is ruled with an iron fist or something my very honest and truthful problems with these issues seem to have been instantly deleted in my last discussion?

I'll try this once more.

1) How do you use the forward and back button on a mouse without having to buy a product like Steer Mouse? There must be a way to do this without having to buy a program given it's such a useful feature that 99% of users need. I don't want to spend hours researching something that should already work. Any advice?

2) How do you zoom in for web browsers like Chrome without it globally zooming in everything on the monitor (even background applications). I don't want to zoom in background applications. I want to be able to zoom in the web browser and still maintain all the features like the side bar, not just a little magnifying glass type thing.

I'm currently zooming in with the CTRL-Middle Mouse button, but I can't find a way to use this feature so it's useful to browse the web it seems to not scale the browser correctly but rather is a global zoom. Any solution for this?