Flash Player

Flash works for me. I get the option to continue blocking or allow. I use Linux Mint OS with Firefox 39.0.

Same with Facebook. You know Mozilla and Facebook want Flash to die. a quick death.

Rich

Media flash

http://thenextweb.com/insider/2015/07/14/firefox-rings-the-death-knell-for-flash/

Rich

If you upgrade to Shockwave Flash 12.0.0.209...

You regain the option to always activate it (if you wish); prior to that Firefox 39 stopped allowing that.  209 fixes some of the problems at the heart of this issue (or is supposed to) but I've seen nothing on the web about all being good now...  At your own risk I guess, YMMV...

My concern is that with this much adverse reaction perhaps the main TMTV viewer needs rethinking?

Works great for me

No problems with the video. Still the best option for quality.

The question isn't quality but rather security

Apparently some of the exposures weren't known about until they'd already shown up in some tools used for hacking.  Much of what I've read is way above my technical pay grade but ominous enough I'd like to steer clear of it if possible.  Flash is so widely used that isn't easy.

As for the quality question I have had performance and stability issues with Flash under the last few releases of Firefox, including FF totally freezing up (this under Win7).  Part of the problem is the number of tabs I have open and that is particularly true if one is for CNN.  I've noticed the standard TMTV player will often suffer video freezes while the sound track appears unaffected--this may be a problem with inadequate video hardware in my PC.

TMTV main video player