First of all, i have bad news about it, some you will know others no, Chrome will stop to suport and probably block Flash content on February 2017; what this means? that if we will want to still use flash on chrome, we will must install it manually or use another browser that will still to suport it.
the thing is... im worried about this site, cuz is a Flash portal, i dont really know what will happen with these flash submisions, movies & games, will die? there will be another option to still to be watched?, i dont really know what will do Newgrounds with this problem.
i dont really know but, HTML5 i think it can run .swf files(produced by flash programs), so maybe that could be an option, and maybe only maybe these Flash movies & games can still alive.
other option can be pass it to other format, but it seems a lot of work, and, personally i only have the files of my submisions from 2014 to now, dont know what will happen with all my 2012-2013 animations. and not only my clase, im sure that a lot of people have this problem too; so, we only must wait and see what happens in the next 2 months.
PD: im finishing my christmas movie so, it can be released pretty soon, in 1-2 weeks ;).