Re: the limitations section, you can execute your extension content scripts within iframes as well via this manifest.json setting: https://developer.chrome.com

Re: the limitations section, you can execute your extension content scripts within iframes as well via this manifest.json setting: https://developer.chrome.com/extensions/content_scripts#all_frames https://developer.chrome.com/extensions/content_scripts#all_... Though that comes with challenges of its own.