I have attempted to keep these somewhat sorted but with so many extensions also be sure to check out the Chrome Webstore
Exensity is a free tool to quickly enables/disables Chrome extensions. Tired of having too many extensions in your toolbar? Just enable the extension when you want to use it, and disable when you want to get rid of it for a little while. You can also launch Chrome Apps right from the list. Available through Chrome Store for free or through GitHub link below.
The go-to tool to extract data from any search in seconds! Not a bot, no coding required, Data Miner is a Google Chrome extension that helps you scrape data from web pages and into a CSV file or Excel spreadsheet. A must for Recruiting/Sourcing professionals but useful for any research and capture project.
Contact Information Research
Seeing this listed you might wonder why it's not listed under Recruiting/Sourcing specifically. While it is one of the best tools out there to date for sourcing and finding contact information based on job searches, it can be incredibly useful for anyone looking to prospect specific people with job titles that match their pipeline for sales. Hiretual can be used as a free Chrome Extension or for more features as a paid solution.
Again, why is this listed under profile search not just recruiting? Because it makes searching for people on LinkedIn, Google+, Twitter and more sooo easy. Super user friendly interface, nothing to download and FREE.
EasyEmail is a Gmail tool via Chrome Extension that helps you write emails very quickly. It learns from your inbox and quickly suggests what you should write based on your previous responses. EasyEmail saves you time on replying to repetitive emails.