What are some alternatives?
When comparing Email Hunter for Chrome and FindThatLead Prospector, you can also consider the following products
Hunter - Find all the email addresses related to a domain
KiteDesk - Use KiteDesk sales prospecting software to generate leads from our premium data marketplace. Then reach prospects and build a sales pipeline with organized Lead Lists. Syncs direct with CRM too!
Slik Prospector - Find anyone's email. No bounces.
Clearbit Connect - Clearbit Connect is a free extension that surfaces actionable information on the people who email you.
Lead Forensics - B2B website analytics and lead generation.
RocketReach - RocketReach allows you to lookup email and phone for 250+ million professionals.