调用的是微软的语音库，挺好的，语言很多，老铁666都有

THIS ADD ON NOT SUPPORTED. Not recommended to download.

This is one of the best Text-T0-Speech Apps found.
Nonetheless, lack of auto-select the target language - instead of scroll each time to the language to which you wish to hear becomes cumbersome.

Hope the author will add this important provision.
While using the app on Firefox it stops working after few times.

It would be nice if the Developer would respond to emails pertaining to this addon