Firefox Relay
Firefox Relay: A focused alias service for reducing spam and tracking, with limited outbound support. Ranked #13 of 23 in Email Alias Services by our editors (7.5/10); pricing: Free plan; best for lightweight masking with tracker and promo controls.
At a glance
- Editor score7.5 / 10
- PricingFree plan
- Best forLightweight masking with tracker and promo controls
- Free planYes
- Founded1998
- Facts checked20 Sep 2026
Where it wins
- Free tier includes five email masks and tracker removal
- Unlimited masks, promotional blocking, and anonymous replies on paid tiers
- Browser extension and web, Android, and Chrome support
Where it doesn't
- No custom-domain support
- Cannot send new outbound messages from an alias
- Premium tiers are currently waitlist-only
Our verdict on Firefox Relay
Firefox Relay creates email masks that forward messages to a real inbox without exposing the underlying address. It is aimed at people who want to reduce spam, limit email tracking, and avoid sharing their primary address with websites and other senders. The service includes a dashboard for managing and labeling masks, plus a browser extension for creating them on sites. It is available through the web, Android, and Chrome extension platforms.
The published plans show a free Limited email protection tier with five email masks, a browser extension, and tracker removal. Email protection adds unlimited masks, a unique Relay email domain, promotional-email blocking, and anonymous replies to forwarded messages. Email & phone protection adds phone masking, while Add VPN protection includes Mozilla VPN access alongside unlimited masks and phone masking. Paid tiers are presented as waitlist-only, so Relay suits buyers who value incremental privacy controls more than a broad sending platform.
Relay’s strongest focus is lightweight address masking rather than full email-account replacement. Masks forward incoming messages to a real inbox, and users can reply anonymously from a masked address, but the service does not support custom domains or new outbound messages. That makes it a practical choice for sign-ups, shopping, newsletters, and other situations where limiting exposure matters. Buyers who need to send fresh messages from aliases, connect their own domain, or manage a more complete alternate mailbox should choose a different email alias service.
Your product? Our editors can test Firefox Relay in depth and publish a review, labelled as paid · from $149/mo →
Firefox Relay pricing
All 4 Firefox Relay plans and prices →
Firefox Relay fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Alias limit | Not verified |
| Custom domains | No |
| Reply from alias | Yes |
| Send from alias | No |
| Browser extension | Yes |
| Mobile apps | Not verified |
| Deployment | Cloud, Browser extension, Mobile |
| Platforms | Web, Android, Chrome extension |
| Support | Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan (source) |
| Website | relay.firefox.com |
| Facts checked | 20 Sep 2026 |
Alternatives to Firefox Relay
- addy.ioA broad alias service with free access, custom domains, sending, replies, and self-hosting.9.4
- SimpleLoginA flexible alias service with strong privacy features and broad platform coverage.9.2
- DuckDuckGo Email ProtectionA free alias service for removing email trackers without changing your inbox.9.0
See all Firefox Relay alternatives →
Also Ranked In
Firefox Relay is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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