Is Inboxes: Create Disposable Temp Mail Addresses safe?

Low risk

Inboxes sends a browser fingerprint to api.inboxes.app when it creates or profiles an account.

When the popup opens, Inboxes computes a Thumbmark browser fingerprint and sends it to api.inboxes.app during account creation. It also stores the same fingerprint as a Mixpanel people property through the extension's api.inboxes.app Mixpanel endpoint after the account flow runs.

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

InboxesAppv0.0.23Chrome Web Store
15Risk

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 0.0.23. 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 api.inboxes.app

    https://api.inboxes.app/*

  • Store data in your browser

    storage

  • Write to your clipboard

    clipboardWrite

  • Schedule its own background tasks

    alarms

Where it sends data

Destinations our analysis observed Inboxes: Create Disposable Temp Mail Addresses 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.

  • api.inboxes.app

    Inboxes: Create Disposable Temp Mail Addresses sends data to api.inboxes.app. No other extension we have analysed sends data here.

  • api.inboxes.app/mixpanel

    Inboxes: Create Disposable Temp Mail Addresses sends data to api.inboxes.app/mixpanel. No other extension we have analysed sends data here.

Updated 21 September 2026lmhnconlgahpimjopmahhnkppkpjkogk