Opera has been around since 1994 and has yet to really grab a large user base. It has always been a relatively solid choice of a web browser but is overshadowed by Firefox, Internet Explorer, and Chrome. Opera and Internet Explorer 9 have a similar feature which is that they will try and navigate you away from harmful websites and content. Opera also sports extended validation. Extended validation is a type of certificate which is issued only after strict criteria has been met. Extended validation makes sure a website is who they say they are. Opera also has top of the line 256-bit encryption to help guarantee security. Opera is a valid alternative to the other major browsers, but to be quite honest I would just stay with Chrome or Firefox.
Soures: http://www.opera.com/security/ and http://en.wikipedia.org/wiki/Usage_share_of_web_browsers



Peerblock is a software application which ‘knows bad’ computers and prevents them from accessing your computer. Peerblock does this by having a list of different computers, associations, governments, corporations, machines flagged for anti-p2p activities, and countries. From these lists you can select which of them you would like to block form accessing your computer.


