Is Hunter: Find email addresses in seconds safe?

Clean risk

Hunter sends the active tab's domain to extension-api.hunter.io when pages load or the active tab changes.

Hunter checks the current website's domain on page loads and tab switches to decide whether its toolbar icon should show available email data. The extension reduces the active tab URL to a relevant domain and sends that domain to extension-api.hunter.io/data-for-domain.

Hunterv3.1.3Firefox Add-ons
0Risk
Who publishes it

Hunter - no other listings under this identity, 2 shared hostnames

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
Hunter
Website

Shared hosts - 2 hostnames

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

extension-api.hunter.io
Also called by 2 other listings, including Hunter
help.hunter.io
Also called by 2 other listings, including Hunter

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 3.1.3. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on hunter.io

    https://*.hunter.io/

  • See the address and title of every tab you have open

    tabs

  • Store data in your browser

    storage

  • Add items to the right-click menu

    contextMenus

Where it sends data

Destinations our analysis observed Hunter: Find email addresses in seconds contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • extension-api.hunter.io

    Hunter: Find email addresses in seconds sends data to extension-api.hunter.io. 2 other extensions we have analysed send data here.

Updated 30 September 2026amo-782066