> This can be achieved by an extension too. In the website you linked, there is a "3rd party tools" link [1] that has a Chrome extension [2] and a Firefox addo

> This can be achieved by an extension too. In the website you linked, there is a "3rd party tools" link [1] that has a Chrome extension [2] and a Firefox addon [3] that do just that. [1]: http://plaintextoffenders.com/tools http://plaintextoffenders.com/tools [2]: https://chrome.google.com/webstore/detail/plain-text-offenders-aler/ggndaknbenjhnkddgjnjjcmomgaidhmd https://chrome.google.com/webstore/detail/plain-text-offende... [3]: https://addons.mozilla.org/en-US/firefox/addon/plain-text-offenders/ https://addons.mozilla.org/en-US/firefox/addon/plain-text-of...