Update: I opened up a Private browsing page,then went to Ancestry-DNA matches then Turned off ETP and bam,all my matches are back!! This only worked for me in Private browsing. Hope it helps!

I have done refresh,cleaned cookies/data,turned off ETP,added the address to trusted,I have done everything everyone has suggested. I even called Ancestry directly,they said the problem is with FF,since their last update. I refuse to use chrome,so I guess after a freakin week of this I will need to get rid of FF and download Opera. Since no one has a real fix for this problem. I can see everything on Ancestry,except for the DNA matches. A real bummer for my research. So disappointed!