TestNav – Legacy Chrome app incompatible with Chrome 139 and higher

Technical Bulletin

Published: July 8, 2025

What is happening?

The legacy TestNav Chrome app will become incompatible with Google's Chrome 139 release, which is set to launch on August 18. It will also not function on any future ChromeOS releases.

What does this mean?

Chromebook devices must either run a Chrome version earlier than 139 or utilize the new TestNav Web App for ChromeOS.

What do I do (and how do I do it)?

There are three options for using TestNav on ChromeOS after the release of ChromeOS 139:

• Use Long Term Support (LTS) channel 132
• Do not install Chrome 139 and pin to Chrome 138 or earlier
• Install the new TestNav Web App for ChromeOS o See installation instruction located here.

Tiny Link: https://support.assessment.pearson.com/x/J4DZCw