Firefox send is a fully encrypted, free file sharing tool that allows you to send files through a safe, private link that you control
If you have a big file You can use Firefox Send to send it to anyone. You can share up to 1G per file. If you have a Firefox Account (which is also free) you get up to 2.5G per file. Unlike other services, your recipient doesn’t have to have an account to get your file. Just a web browser and an internet connection.