Antivirus
No matter how safe you may feel without an antivirus, it definitely is a must-have application these days. And it's a good thing those come for both general purposes and things of more particular nature, like safe Internet surfing. This category gives you numerous antiviruses to choose from.
Acronis Ransomware Protection
AppRanger
Kaspersky TDSSKiller
Loaris Trojan Remover
VNC® Personal Edition
Mobicip
K7AntiVirus Plus
NoVirusThanks Threat Killer
SpyShelter Firewall
RDS Knight
avast! File Server Security
NextGen Widget Encrypt
Screen Anytime
Comodo Firewall
WriteProcessMemory Monitor
NoVirusThanks Hidden Process Finder
Panda Antivirus 2008
Password Folder
Ultimate Security Suite
FirePanel XP
ISpy USBLock
Clean Virus MSN
K7UltimateSecurity
Norton Safe Web
Outpost Security Suite Pro
Multi Virus Cleaner
Immunet
Norton PC Checkup
SonicWALL Global VPN
Discover FDM
Add-on support
You can get add-ons that download files/video from arbitrary websites.