a new feature that adds protection against a class of browser flaws known as cross-site scripting (XSS).
https://nakedsecurity.sophos.com/2022/08/31/chrome-patches-24-security-holes-enables-sanitizer-safety-system/
Chrome extensions with 1.4M installs covertly track visits and inject code | Ars Technica
https://arstechnica.com/information-technology/2022/08/google-removes-extensions-that-covertly-tracked-users-and-injected-javascript/