Mozilla today announced the formal launch of Firefox Send, a file-sharing service that got its start as one of the organization’s “Test Pilot” experiments.


According to a new blog post from Mozilla, the nonprofit behind the popular open-source Firefox web browser, its new encrypted self-destructing file-sharing platform, Firefox Send, is now out of beta.

Firefox Send acts as a secure file-transfer service, intended to help you privately share sensitive files with others. Available through any browser at, Firefox Send allows you to upload files and send them to someone else with end-to-end encryption. It also gives you control over how the files are treated, allowing you to set the file link to expire, limit the number of downloads, and set a password for the recipient to enter before being allowed to download the files you share.

Additionally, Mozilla is making Firefox Send available as a standalone app on Android, though that will remain a beta product for now.

In an accompanying blog post, the non-profit points out Firefox Send is an extension of its commitment to security and privacy:

“It’s part of our long-standing Mozilla Manifesto. We are continually looking for new ways to fulfill that promise, whether it’s through the browser, apps or services. So, it felt natural to graduate one of our popular Test Pilot experiments, Firefox Send,”

It’s worth noting here that you can only share a file size of up to 1GB without being logged into a Firefox account, and you will also be limited to just one download per link, down from 20 during the Test Pilot phase. If you are logged into a Firefox account, you can share files of up to 2.5GB and enable a limit of up to 100 downloads.

“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,” reads the report. “As with all Firefox apps and services, Send is Private By Design, meaning all of your files are protected and we stand by our mission to handle your data privately and securely.”

Files that are sent using Send are end-to-end encrypted which means your data is secure from the moment you send it to the moment it’s opened. This, combined with the previously mentioned features, make Firefox Send a useful tool for sending your more sensitive documents.