noscript 2.9 not working in FF 49 developer edition

[messmer]

I actually had to uninstall Noscript to view the captcha to post this help request! As the subject says, Noscript 2.9 has suddenly stopped working for me in FF developer edition 49. When I tried to view a youtube video today I could only see a black screen where the video would be, and the only scripts listed by Noscript (to allow site) were ytimg.com and youtube.com. This is a new problem and I cannot figure out how to fix it, I've uninstalled multiple times but it doesn't help.
I also use Comodo IceDragon browser and have no problems using Noscript.
Any help?
Thanks

[barbaz]

NoScript 2.9 is much outdated and will not work fully in current browsers, and surely not pre-releases. Please make sure you're using latest stable release or latest dev build (currently 2.9.0.11 and 2.9.0.12rc1, respectively)

AMO
https://noscript.net/getit