Previously everything worked fine on Firefox dev. Labs & Videos but now suddenly from yesterday morning course videos are not loading in HD in firefox or firefox developer version. Videos loading in HD in Chrome.
HI @syedmuhammadmoin somedays ago another user has the same issues that you in Firefox. Maybe is not the same case that you are having, but just in case it is something similar, I bring you the topic right here: 360p, 240p are the only video player options available for quality - #7 by accounts_diff
Best Regards