First post & Downloading Youtube videos

This is my blog's first post, the blog is about general stuff, i will put anything i think can be of use for the blog's viewers. So here is the first post:

Downloading YouTube Videos(for Firefox users):
1. first you will need this firefox extension from here https://addons.mozilla.org/
(search for "fast video download").
2. enter a youtube video you would like to download and press the small button in the bottom-left corner of your browser(it looks like a window with an orange arrow).
3. after you downloaded the video you will have a video.flv file, if you want to change the format to mp3, mpg, 3gp or else you can go to www.converttube.com or to www.vixy.net.