Is WebHID for Firefox safe?

Low risk

WebHID for Firefox exposes a WebHID shim to every site and forwards approved HID reports to a local provider.

The extension injects a page-level navigator.hid implementation on all websites, not just device-management pages. After a user approves a device in its prompt, pages can exchange HID reports through the extension's local WebSocket provider, and the extension also strips Wootility pages' meta Content-Security-Policy so its shim can run there.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

Sainanv0.2.4Firefox Add-ons
17Risk
Who publishes it

Sainan - no other listings under this identity

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

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 0.2.4. 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 wootility.io

    https://wootility.io/

  • Read and change your data on beta.wootility.io

    https://beta.wootility.io/

  • Watch every request your browser makes

    webRequest

  • Watch, block and rewrite every request your browser makes

    webRequestBlocking

Where it sends data

Destinations our analysis observed WebHID 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.

  • wss://127-0-0-1.faketls.com:33881/r1

    WebHID for Firefox sends data to wss://127-0-0-1.faketls.com:33881/r1. No other extension we have analysed sends data here.

Updated 30 September 2026amo-2874022