yes
No, Neither Roblox of Facebook have viruses. People on Facebook do sometimes post links to viruses, and there are scams that exist on Facebook, but there are no viruses on Facebook itself. Roblox does not have viruses either. It does have virus scripts within the game, but those cannot actually harm your computer.
No. Unless you go on links from facebook, but they would have to be really complex viruses.
Facebook in itself cannot give you viruses. However, clicking on the advertisements, or using applications not developed by Facebook or a trusted company potentially can.
if there is a application on facebook. you can use this application on every account.
No, I scanned it many times and there is no viruses...
no
As far as I know, there's no way for you to open farm ville on Twitter. Farm ville is an application for facebook, thus allowing only facebook users to access that.
yes
How do i unignore an application on Facebook
You search for the application maker and the follow the steps their. Facebook allows you to develop application in php or asp.net and then integrate with facebook.
Facebook is a social website application.
Twitter doesn't give any viruses as long as you're careful, facebook is awesome and it doesn't, but Myspace and Bebo gives viruses so becareful.