Firefox is a web browser, not a editor. You would need to know some HTML and CSS to build your website along with a web hosting company to host it or you can host it yourself. You would also need to have a editor such as Adobe DreamWeaver. Notepad is a simple tool to write your website in if you don't want to shell out a few hundreds for DreamWeaver. There are also some alternatives. *http://www.howtogeek.com/177129/beginner-geek-how-to-host-your-own-website-on-windows-wamp/ (This will show you how to host your own website) *https://www.000webhost.com (This is a web hosting company to host your website on. It's free!) *http://www.codecademy.com/ (Good site to learn HTML/CSS, and a bunch of other programming languages such as Python and JQuery. *http://lifehacker.com/5818674/the-best-programming-text-editor-for-windows (Here's a list of programming text editors if you don't want to use the built in Notepad in Windows) This thread will now be closed as information to do what you're asking has been provided and because this is not a support request. If you feel I've done this in error, please flag my profile (click my picture) then click "Report abuse" on my profile.

Forgot to add, You can also use a 3rd party website to build your website without any programming knowledge. Here are a few options *http://www.webs.com/ *http://wordpress.com/ *https://www.yola.com/ *http://www.wix.com/ *https://neocities.org/