Is Hoppscotch Extension for Firefox safe?

Clean risk

Hoppscotch Extension for Firefox lets Hoppscotch-approved pages proxy requests to any URL through the extension.

Pages on the approved origin list, which defaults to https://hoppscotch.io, can send request configurations to the extension. The extension makes the request with the supplied URL, method, headers, body, form data, or file data, then posts the response status, headers, URL, and body back to the page.

Hoppscotchv0.37Firefox Add-ons
3Risk
Who publishes it

Hoppscotch - no other listings under this identity, 1 shared hostname

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

Shared hosts - 1 hostname

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.

hoppscotch.io
Also called by 2 other listings, including Hoppscotch

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 0.37. 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 every site you visit

    <all_urls>

  • Store data in your browser

    storage

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

    tabs

  • Read and change cookies, including the ones that keep you signed in

    cookies

  • Run its own code inside the pages you visit

    scripting

Where it sends data

Destinations our analysis observed Hoppscotch Extension for Firefox 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.

  • hoppscotch.io

    Hoppscotch Extension for Firefox sends data to hoppscotch.io. No other extension we have analysed sends data here.

Updated 30 September 2026amo-2619675