Text to speech = crash. Pls fix.

Using text to speech services makes the browser unresponsive. Tested with this: https://www.ivona.com/

In addition, I am unable to kill the application using Process Explorer after it became unresponsive.

What OS/SP ?
What exact version of SafeZone Browser ?
If you are using Windows 10, is there also a problem with Narrator ?

Iā€™m using Win 8.1, fully patched.

Browser is version 1.51.2220.62