This was a great service for transferring 1 off files between 2 people (such as 500mb wav files for podcast episodes which is what I used it for). As it turns out, you can get similar behavior with Dropbox. The person sending the file doesn't need a Dropbox account either. You just send them a URL and then they have permission to upload the file. The only extra step vs Firefox Send is you as the receiver need to dele…
I think the link offers you to create one but it's not clear that it's not required.