Is Insert and Send HTML with Gmail safe?

Low risk

Insert and Send HTML with Gmail transmits a hashed version of the signed-in Gmail address and compose-action events to Google Cloud Pub/Sub.

The extension reads the signed-in user's Gmail address from the page, computes a SHA-256 hash prefixed with 'inboxsdk:', and includes that hash in telemetry events batched in localStorage. Events covering actions such as compose open, attachment uploads, and Drive button clicks are posted to a Google Cloud Pub/Sub topic (project mailfoogae) using a hardcoded API key. Error reports containing the same email hash, session ID, and stack traces are separately sent to api.inboxsdk.com.

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

Designmodov1.0.13Chrome Web Store
15Risk
Who publishes it

Designmodo Inc. - no other listings under this identity

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

Publisher
Designmodo
Declared legal entity
Designmodo Inc.
Registered address
50 N 1st St #4i, Brooklyn, NY 11249, US

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 1.0.13. 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 mail.google.com

    *://mail.google.com/*

  • Read and change your data on inbox.google.com

    *://inbox.google.com/*

  • Run its own code inside the pages you visit

    scripting

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

    tabs

  • Act on the current tab, but only after you click the extension

    activeTab

Where it sends data

Destinations our analysis observed Insert and Send HTML with Gmail 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.

  • pubsub.googleapis.com

    Insert and Send HTML with Gmail sends data to pubsub.googleapis.com. 4 other extensions we have analyzed send data here.

  • api.inboxsdk.com

    Insert and Send HTML with Gmail sends data to api.inboxsdk.com. 3 other extensions we have analyzed send data here.

Updated 30 September 2026bcflbfdlpegakpncdgmejelcolhmfkjh