No you do not!
No, you cannot get Mozilla Firefox on your iPod Touch. The only internet application available for the iPod Touch is the app called 'Internet', which uses Safari's web browser style converted into a mobile format for the iPod Touch and iPhone.
yes with the free facebook app or you can use safari.
no, the ipod touch cannot use 3g so you can only use wifi.
No You're Ipod Should Already Have Safari On It And If You Mean By Wi-fi needed to use the internet on ur ipod/ipod touch then you need a router
You will need to connect the iPod touch to a local wifi wireless network and the use the safari app on the home page. To get to the wifi menu, press settings on your ipod
No, you do not have to buy a monthly plan. It is a common myth that you must buy a monthly plan to use the iPod Touch, but it is false. When you pay for it at the store, that's the last time you'll pay to use that iPod Touch.
iPod touches don't have cellular data access, so they are neither pay as you go or on a contract. They use WiFi, which you have to get separately.
Yes. you can either go on it on safari or download the free app in the appstore
No, you don't ever need to pay to use Facebook.
Yes you have to pay !
Yes, you can use the Spotify app to add songs to your iPod touch. You will have to pay for the songs, and you will need to be connected to the Internet to use the app.