Voice In is disabled on the following webpages:
- Chrome Webstore (https://chrome.google.com/webstore/)
- Chrome internal pages like new tab (chrome://newtab)
- Chrome extension page like voice in settings page (chrome-extension://pjnefijmagpdjfhhkpljicbbpicelgko/settings.html)
Voice In is a chrome extension. For security reasons, the Chrome browser does not load extensions on the pages. As a result, no extension (including Voice In) works on those pages.