This is an official discussion thread linked from the www.privacytools.io website. This thread can be used for troubleshooting, questions, discussions and if you look for alternatives.
It’s like WeTransfer but way better for privacy.
There’s also Tresorit Send; 5 GB limit compared to Firefox Send’s 2.5 GB limit.
WeTransfer requires your and receiver’s e-mail address, Tresorit requires only yours, and Firefox Send neither (unless you want 2,5 GB, then you need to login to your FF account)
WeTransfer actually has a create link option, it doesn’t need email.