AnonymMail creates free temporary email addresses without registration and lets users customize an address and receive messages in an inbox.
Firefox Relay
Mask email and phone details with Firefox Relay, which forwards messages to a real inbox.
About Firefox Relay
Firefox Relay creates email masks and a masked phone number that forward emails, calls and texts to a user's real inbox and number, so senders do not see the real contact details. Masks can be created, labeled and blocked for spam from a Relay dashboard, with a browser extension for use on sites. The free version includes 5 email masks. Unlimited masks, a unique Relay domain, anonymous replies, promotional-email blocking and phone masking are described as Premium. Free Relay is stated as available in most countries, while Premium is stated as available only in specific countries.
Key features
- Email masks forward messages to true inbox
- Masked phone number forwards calls and texts
- Dashboard to create, label and block masks
- Remove common trackers from forwarded emails
- Premium: reply to emails without showing real address
- Premium: block promotional emails but keep receipts
Best for: People who want to sign up for accounts without sharing their real email address or phone number.
Good for
- Senders do not see the real email address or number
- Masks can be labeled and blocked when they receive spam
- Forwarded emails can have common trackers removed
Watch out for
- Free version includes 5 email masks
- Phone masking, anonymous replies and promotional blocking are described as Premium
- Premium is listed as available only in specific countries
Firefox Relay at a glance
- Website
- relay.firefox.com
- Category
- Privacy & Security › Private Email
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Browser extension, Web
- Open source
- Not stated
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Firefox Relay alternatives
Tools and sites you could use instead, ranked by how closely they match.
Cloaked creates email and phone aliases plus passwords for signing up to services without sharing real contact information.
addy.io creates email aliases that forward to a real inbox, letting users use different addresses for services and disable one if it leaks.
33mail creates private email aliases that forward messages to an existing inbox and lets users deactivate addresses or reply anonymously.
AnonAddy provides anonymous email forwarding through an open-source project, with source code and details hosted on GitHub.
Open source
24 alternatives
Create a disposable temporary address with Trashmail to reduce spam and keep a real inbox private.
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Firefox Relay FAQ
Where is Relay available?
Free Relay is available in most countries. Relay Premium is available in Austria, Bulgaria, Belgium, Canada, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malaysia, Malta, Netherlands, New Zealand, Poland, Portugal, Romania, Singapore, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom, and the United States.
What is a Relay email mask?
Email masks are masked, or private, email addresses that forward messages to your true email address. These masks allow you to share an address with third parties which will mask your true email address and forward messages to it.
When should I use Relay email masks?
You can use Relay email masks most places you'd use your regular email address. They are recommended when signing up for marketing or informational emails where you may want to control whether you receive emails in the future.
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