Mozilla Launches Firefox Send – A Free Encrypted File Sharing Service

Mozilla has finally made its Firefox Send, an end-to-end encrypted file sharing service available for everyone. It allows you to transfer files up to 1GB in size, but if you need more. you can sign up for a free Firefox account anytime and enjoy an upload limit up to 2.5GB.

According to a blog post by Nick Nguyen, Vice President of Firefox Product, “We know there are several cloud sharing solutions out there, but as a continuation of our mission to bring you more private and safer choices, you can trust that your information is safe with Send.”

Firefox Send is an online service that uses browser-based encryption technology. You just have to visit its website, upload a file, protect it with a password (optional), set an expiration date and finally share the generated link through any medium you want.


End-to-End Encryption: It uses 128-bit AES-GCM encryption via the Web Crypto API and encrypts the file even before uploading to the Mozilla servers.

Password Protection: If you want to set an extra layer of security, Firefox Send allows you to set a password that will be required before downloading the file.

Time Limit: If you don’t want to keep the shared link alive for forever, just set a time limit ranging from 5 minutes to a few weeks. In this way, you can ensure that the file cannot be download after the set time period.