Google Chrome have Text to Speech extension, that make it easy to listen to web pages instead of reading the page. You can install the extension from.
https://chrome.google.com/extensions/detail/jbldhmenlfmbooleglopeplanhpmhmje

tts use web based google tts, so it is little slow, you need to wait few seconds before the sound starts. It is not perfect but acceptable. Not bad as festival tts.

I tested on windows and ubuntu. Both worked fine.