For sourcing on job aggregators like Indeed, Glassdoor, ZipRecruiter, and LinkedIn Jobs, pick a Chrome extension by category: Recruiter Copilot for flagging match strength in-tab (the only extension that scores candidates against your open role in real time as you browse), a dedicated contact finder for surfacing emails and phone numbers on profiles, and a deduplication or CRM tool for collapsing the same candidate across boards. A browser extension is the fastest way to add AI candidate matching to job aggregator sourcing without switching platforms.
Recruiters and sourcers live inside Chrome, which held 69.39% of the worldwide browser market in August 2026 (StatCounter). Job boards all run in a browser tab, so the fastest place to add matching, contact lookup, and cleanup is inside that same tab rather than in a separate platform you have to context-switch into.
Job aggregators are a primary channel, not a fallback. Among Americans who looked for work in the previous two years, 79% used online resources in their most recent job search and 34% said those online resources were the most important tool available to them (Pew Research Center, 2015). Candidates are on the boards, so that is where a sourcer should meet them.
The scale explains why triage, not discovery, is the real bottleneck. There were 7.3 million job openings in the United States in July 2026 (U.S. Bureau of Labor Statistics, JOLTS). Listings are not scarce. The scarce thing is your attention, so the extensions that matter are the ones that help you decide who is worth contacting and stop you working the same person twice. This is not a list of every recruiting extension. It is a shortlist scored on the three jobs an aggregator sourcer actually needs done. Start with the comparison table, then read the notes on the categories that fit your workflow.