Help with making a browser, want to add a few features

Hello, I used the tutorial on this site to make a web browser and I finally got it(wasn’t really hard) but just got done with it actually working.

But I wan’t to know how to add a few features to my browser such as:

A Home button that leads you to home
A Refresh button
A Forward and Back button

and also how to possible have tabs, favorites etc…

thanks to anyone that helps.

o also. i have not fully saved something before. but how would I save my project so people can d/l it and use it and stuff?