the bottom page of this pdf has a chart why I recommend pepper flash. I don’t know if the info in this pdf is accurate but if it is then pepper is the best. can anyone confirm the accuracy of the info in this pdf?
[s]copy and paste this into a search engine and then click the top result
media.blackhat.com/…/BH_US_12_Sabanal_Digging_Deep_WP.pdf [/s]
Maybe a dumb question, but is there any specific reason you don’t put the actual link?
for some reason I couldn’t get the whole link. I don’t know why. glad you were able to. thanks for posting. I will edit my original post
It was recently linked to that pdf on Google Chrome Blog: Securing Flash Player for our Mac users. 
Slides: https://media.blackhat.com/bh-us-12/Briefings/Sabanal/BH_US_12_Sabanal_Digging_Deep_Slides.pdf
does anyone know if mozilla is going to improve the sandbox for flash in firefox
also is it more secure to use pepper flash or html5 for video
I think Adobe did a good job with Flash Player for Firefox, at least for Vista and later. Inside Flash Player Protected Mode for Firefox
I believe they have reached the end of the NPAPI-road. To improve the sandbox, Mozilla would have to implement PPAPI in Firefox.
If PepperFlash has been ported to Native Client, that would be an advantage, but I don’t know if that is the case. Other than NaCl, I would say no.
But wait… Google to rebuild Chrome on secure foundation 