Firefox Send
Encrypted file sharing. Self-destructing downloads with password protection.
Open the official app on send.firefox.com
This tool is hosted by its maintainers. Click below to open send.firefox.com in a new tab — it's their official demo.
Browse encryption tools →What's next with Firefox Send?
Choose how you want to get started.
Use it free
Open the official tool or demo — no account needed.
Self-host it
Run the open-source version on your own infrastructure.
What is Firefox Send?
Firefox Send is an open-source file-sharing tool developed by Mozilla, designed to enable secure and private transmission of sensitive data. It allows users to upload files to a temporary server, generate a unique download link, and share it with others without requiring recipient accounts. The tool prioritizes privacy by encrypting files during transfer and automatically deleting them after a set period. It caters to individuals and organizations needing to exchange confidential information, such as documents, photos, or videos, without exposing data to third-party servers. The solution addresses the challenge of securely sharing files while maintaining control over access duration and permissions.
How it works
Firefox Send is a privacy-focused file-sharing service integrated into the Firefox browser, enabling users to send files securely without relying on third-party cloud storage. It leverages Mozilla's commitment to user privacy by ensuring data is encrypted and stored temporarily. The tool is ideal for scenarios where sensitive information must be shared without long-term exposure, such as transmitting medical records, financial documents, or personal media. It eliminates the need for recipients to create accounts, reducing potential security risks. Users can upload files up to 1 GB in size, generate a unique download link, and set an expiration time (e.g., 1 hour, 1 day, or 1 week). Files are automatically deleted after the specified period, ensuring data does not persist indefinitely. Recipients can download the file only once, preventing unauthorized redistribution.
How to use it
- 1Open Firefox and navigate to send.firefox.com. 2. Click 'Choose File' to upload the desired document. 3. Set the download expiration time and optional password protection. 4. Generate the shareable link and copy it to your clipboard. 5. Paste the link into an email, message, or website to distribute the file. Practical tips: Use short expiration times for sensitive files. Avoid sharing links publicly to prevent unauthorized access. Verify the file size limit (1 GB) before uploading large data.
What it can do
- Password Management
Use cases
Assumptions and limitations
Assumptions
- source: https://github.com/firefox-send
- license: Open source
- privacy: Opens an external demo
Limitations
- Maximum file size is restricted to 1 GB, limiting use for very large datasets.
- No account system means users cannot track download activity or manage shared links centrally.
- Files are permanently deleted after expiration, which may conflict with archival needs.
- Limited support for advanced security features like multi-factor authentication.
- Dependent on Mozilla's infrastructure, which may face scalability challenges during high traffic.
Understanding the result
Encrypted file sharing. Self-destructing downloads with password protection.
Tool details
- Clearly flagged when a network request is needed.
- No account, no sign-up, and no tracking of your content.
- Powered by firefox-send (MIT).
- Built with
- firefox-send (https://github.com/firefox-send)
- License
- MIT
- Runs locally
- No — requires a network request
- Verification
- Not yet verified
- Input
- Text
- Output
- Output
Built with https://github.com/firefox-send. OpenToolVault provides the discovery and browser interface while crediting the original project maintainers.
- Built with
- firefox-send
- License
- MIT
Open-source project
OpenToolVault is an independent directory. We are not affiliated with or endorsed by this project.
References
- /firefox-send — GitHub Repository
Upstream project · GitHub
Frequently asked
How does Firefox Send ensure file security?
Firefox Send encrypts files during transfer using HTTPS and stores them temporarily on Mozilla's servers. Files are automatically deleted after the specified expiration time, and recipients can download them only once. This prevents long-term data retention and unauthorized access.
How does Firefox Send differ from cloud storage services?
Unlike cloud storage platforms like Google Drive or Dropbox, Firefox Send does not store files permanently. It uses temporary server storage and focuses on privacy by deleting files after a set period. It also avoids account requirements, making it suitable for one-time file sharing without persistent data.
How can I share a file with someone who doesn't have Firefox?
The generated download link works through any web browser, so recipients can access it using Chrome, Edge, or Safari. No Firefox installation is required for the recipient to download the file.
What happens if the recipient doesn't download the file before expiration?
The file is permanently deleted from Mozilla's servers once the expiration time is reached. If the link is not used, the file is removed, ensuring no residual data remains.
How do I troubleshoot a 'File not found' error?
Verify the link was copied correctly and check for typos. Ensure the expiration time has not passed. If the issue persists, regenerate the link and try again. Confirm the file was successfully uploaded before sharing.