You can add a Chrome Source Code Viewer. I like this one. https://chrome.google.com/webstore/detail/chrome-extension-source-v/jifpbeccnghkjeaalbbjmodiffmgedin

You can add a Chrome Source Code Viewer. I like this one. https://chrome.google.com/webstore/detail/chrome-extension-source-v/jifpbeccnghkjeaalbbjmodiffmgedin https://chrome.google.com/webstore/detail/chrome-extension-s... Then look in the Manifest.json for manifest_version. Here's the Twitter showing the timeline: https://twitter.com/GlobeMallow_io https://twitter.com/GlobeMallow_io The best part is AdGuard is still running manifest v2.