Rated 5 out of 5 stars

cys did what I expected. but also froze my browser, sometimes the windows 10.
I apologize for the above comments,
Finally,give the ffmpeg folder full permission, I'm using the latest stable FF on windows 10 and no more freezing,
Thanks

This review is for a previous version of the add-on (5.7.27). 

Please contact us at cytsaver@hotmail.com, let us know what version of Firefox you are using.

1-31-17 Appreciate the update, thanks: )