# Firefox Relay review: KYC policy, privacy and safety grades

> Firefox Relay is an email alias service. Its terms put it at KYC level 1 of 4: no ID mentioned. NoKYC Score grades it 6.0/10 for privacy (fair) and 5.8/10 for safety (fair). In its favour: open source. To watch: it requires an email address. No incidents are on record.

Source: NoKYC Score, "Firefox Relay review", reviewed 22 Oct 2026, https://nokycscore.com/service/firefox-relay

## Key facts
- **Category:** Email Aliases
- **KYC level:** 1 of 4: No ID mentioned
- **Grades:** Privacy 6.0/10, Safety 5.8/10
- **Sign-up:** Email required
- **Fees:** Free tier; paid Relay Premium tier
- **Incidents on record:** 0
- **Last reviewed:** 22 Oct 2026
- **Official website:** https://relay.firefox.com

## What it is
Firefox Relay is Mozilla's email-masking service. It creates masked addresses that forward messages to the user's true email address, so the real address does not have to be shared with every website. The FAQ says Relay requires an account with a verified email address, limits how many masks can be generated per day, and stores emails only when the service is down, never for more than three days. Delivery relies on Amazon SES, which blocks spam and malware. A paid Relay Premium tier adds replying from a masked address and blocking promotional emails, and Mozilla also markets phone-number masking. The service's code is published in Mozilla's fx-private-relay repository on GitHub.

## What the terms say about ID
FAQ says Relay requires an account with a verified email address; no identity documents are mentioned.

## Features and warnings
- **Identity:** ID never required: not stated; No account needed: no; No email needed: no; No phone number: not stated
- **Payment:** Accepts Monero: not stated; Accepts Lightning: not stated
- **Access:** Tor onion address: not stated; Works without JavaScript: not stated
- **Trust:** Open source: yes; No-logs policy: not stated; Independent audit: not stated; Company named: not stated; 5+ years operating: not stated
- **Warnings:** May ask for ID: not in terms; Email required: yes; Phone number required: not in terms; Closed source: not in terms; Nobody accountable: not in terms

## Questions
### Does Firefox Relay require KYC?
Firefox Relay is rated KYC level 1 of 4 on this site: no ID mentioned. FAQ says Relay requires an account with a verified email address; no identity documents are mentioned.

### Is Firefox Relay safe to use?
Firefox Relay has a Safety grade of 5.8 out of 10 and a Privacy grade of 6.0 out of 10. No incidents are on record. Evidence level: documentation reviewed.

### Is Firefox Relay legit?
Firefox Relay is a working email alias service. Being real is not the same as being safe: its Safety grade here is 5.8 out of 10, built from custody, liquidity, track record and incidents.

### Is Firefox Relay a scam?
NoKYC Score does not label services as scams; it records documented incidents with their sources and outcomes. No incidents are on record for Firefox Relay.

### Do I need an account or email to use Firefox Relay?
Email required.

### What fees does Firefox Relay charge?
Free tier; paid Relay Premium tier. Fees were recorded from Firefox Relay's own pages and can change; check before you send.

### Does Firefox Relay have a Tor onion address?
No official onion address was found on Firefox Relay's own pages.

### Can I use Firefox Relay over Tor?
Firefox Relay does not publish an official onion address.

## Sources
- https://relay.firefox.com/faq/
- https://relay.firefox.com/premium/
- https://github.com/mozilla/fx-private-relay

How grades are calculated: https://nokycscore.com/methodology