Name:OSIRT (Free)
URL:http://www.osirtbrowser.com/
Description:This browser is customized especially for law enforcement authorities
Utility:This free and open source browser helps - 

• Perform open source research research on the web
• Capture screenshot and videos, with timestamp and hash value
• Download an entire web page including on the dark net
• Allows time stamped case notes and attachments
• Generate final report

Special Features:

• Free and open source
• Everything is stored in the local machine, nothing touches the cloud
• For Window 7, 8, 8.1 and 10