I've upgraded to the newest Firefox version I can no longer upload files to any websites. For example, I can't upload photos or videos on Facebook, or upload any files to WeTransfer or any other website. Basically the "upload / browse" button doesn't work. When I press "add files" (FB) nothing happens. And if I drag and drop, it doesn't react either. Facebook sometimes shows loading when pressed "add a photo", but then it stops and nothing happens. I can post text on websites though. Any advice on what to do?
Please help.
Thanks!
I didn't find the right solution from the Internet.
