Is HMH Player safe?

Clean risk

This app provides online and offline access to HMH lessons, assessments, classroom collaboration, and reporting.

Teachers and students can download licensed HMH content, use it offline, and sync when they are back online. The app supports custom lessons, uploaded content, links to external resources, presentation tools, informal polling, instant messaging, and real-time progress reporting.

Houghton Mifflin Harcourtv4.0.1Chrome Web Store
0Risk
Who publishes it

Houghton Mifflin Harcourt - no other listings under this identity, 5 shared hostnames

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

Publisher
Houghton Mifflin Harcourt
Website
customercare.hmhco.com/product/techsupport/CCTechSupportLandingPage.html

Shared hosts - 5 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.

sdk.ckeditor.com
Also called by 1 other listing: SquarespaceWebsites Tools PRO
lostechies.com
Also called by 2 other listings, including Smartling Context Capture
the-taylors.org
Also called by 3 other listings, including Phone-C, Note Board
cksource.com
Also called by 4 other listings, including SquarespaceWebsites Tools PRO
docs.ckeditor.com
Also called by 4 other listings, including SquarespaceWebsites Tools PRO

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 4.0.1. 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 hrw.com

    *://*.hrw.com/*

  • Read and change your data on thinkcentral.com

    *://*.thinkcentral.com/*

  • Read and change your data on hmhco.com

    *://*.hmhco.com/*

  • Read and change your data on google.com

    *://*.google.com/*

  • Read and change your data on bing.com

    *://*.bing.com/*

  • Read and change your data on brightcove.com

    *://*.brightcove.com/*

  • Read and change your data on brightcovecdn.com

    *://*.brightcovecdn.com/*

  • Read and change your data on boltdns.net

    *://*.boltdns.net/*

  • Read and change your data on llnwd.net

    *://*.llnwd.net/*

  • Read and change your data on omtrdc.net

    *://*.omtrdc.net/*

  • Read and change your data on akamaihd.net

    *://*.akamaihd.net/*

  • Read and change your data on content.link-systems.com

    *://content.link-systems.com/*

  • Read and change your data on 127.0.0.1

    *://127.0.0.1/*

  • Read and change your data on www.google-analytics.com

    *://www.google-analytics.com/

  • Read and change your data on learnosity.com

    *://*.learnosity.com/*

  • Read and change your data on www.googletagmanager.com

    *://www.googletagmanager.com/*

  • Store an unlimited amount of data in your browser

    unlimitedStorage

  • Store data in your browser

    storage

webview

Where it sends data

Destinations our analysis observed HMH Player 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.

  • Houghton Mifflin Harcourt

    HMH Player sends data to Houghton Mifflin Harcourt. Named as a recipient in this extension's own analysis.

  • teachers and students in collaborative classroom sessions

    HMH Player sends data to teachers and students in collaborative classroom sessions. Named as a recipient in this extension's own analysis.

Updated 30 September 2026emifjioojhabnleoobgjegjknecpbfbm