Whenever i browse facebook on my phone,i'm automatically re-directed to the mobile site. I used to love it when i just joined Facebook but this doesn't cut it anymore.
What i'm going to list is just a simple guide as to how to bypass this restriction.....
1. Go to facebook.com(you'll get re-directed to mobile site).
2. Log in.
3. After you might have been logged in, go to the bottom of the page and click on "Touch site"(if you do not see this, go to your url bar and type facebook.com and then check again).
4. The page will be really big for those with lower screen size phones but just go to the bottom of the page and click "Full site" .
5. And voila! you are in the full site. Just bookmark the page for faster access.
Hope i helped.
UPDATE- You can also try www.facebook.com/home.php.