can not download videos to desktop in thunderbird

I judt pdated to the newest firefox version and I have instagram for desktop. I have all the necessary extentions for instagam videos to down load to my desk top. My default player is Windows media player before the update and as of last week i was able to get any instagram video to sown load to my desktop I no longer can. I have reinstalled Firefox reinstalled widows media player, changed my instagram password. Changed my firefx password, have the latest adobe installed/. Tried downloaing instagram videos in safe mode with no extentions it will not go to desktop I have Ig helper add on instagram photo and video downloader it will not down load to my desktop as of 2 days it will in Google Chrome but id rather not use Chrome