Is Firefox send encrypted?
All files uploaded and shared through Firefox Send are stored in an encrypted format, and users can configure the amount of time the file is saved on the server and the number of downloads before the file expires.
Is Firefox send free?
Mozilla launched today Firefox Send, a free, encrypted file sharing service, accessible in all browsers at send.firefox.com. The service works just like any other file sharing service available online. It lets users upload a file on Mozilla's servers and lets them share a link to the uploaded files with their friends.
How do you send securely emails and transfer files?
Just make sure you're logging on through an HTTPS address. You should see a padlock in the lower right side of your browser or next to the address bar on top. If you must use an e-mail client program (such as Outlook or Thunderbird), try to use SSL encryption, which your e-mail provider must support.