Burner Mail vs Firefox Relay (2026): which should you pick?

Pick Burner Mail if

• Fits if you want a different forwarding address for each sign-up
• Works for people who want to cut off one sender without changing their real address

Look elsewhere if

• Skip it if you want to try it free, as new users must pay before creating burners
• Skip it if you want to see prices first, as none are shown publicly
• Not for you if you want open source, as the code is private
• Watch out: the vendor doesn't recommend sending passwords or card numbers through it
• Watch out: payments go through a reseller under its own terms

Pick Firefox Relay if

• Fits if you want a throwaway address for a few sign-ups
• Works for people who already use Firefox and want masks built into it

Look elsewhere if

• Tight if you want more than 5 masks, as Premium shows no price and is waitlist only
• Not for you if you need to reply from a mask, as the free plan can't
• Watch out: Mozilla advises against masks for banks, doctors, lawyers and mail with attachments you must receive
• Watch out: Relay Premium is limited to listed countries, including the US, Canada, the UK and most of the EU

Burner Mail

• Pricing is not shown on the public site; plans are chosen after creating an account, so no price is recorded here.
• The vendor removed its public free plan, so new users must pay before creating burners, while existing free accounts keep their current limits.
• The source code is private, and the vendor says it does not recommend sending sensitive data such as passwords or card numbers through the service.
• Payments are handled by an online reseller and merchant of record under its own terms.

Firefox Relay

• Premium and phone plans show no price and a Join the Waitlist button, so only the free plan can be signed up for.
• The free plan stops at 5 masks and cannot reply from a mask; masks go to your existing inbox.
• Mozilla advises against masks for banks, doctors, lawyers and mail with attachments you must receive.
• Relay Premium is limited to listed countries, including the US, Canada, the UK and most of the EU.

Burner Mail

One-click burner addresses

The Chrome and Firefox extension adds an icon to email fields and generates a new address for that site.

Block, disable or delete

Any burner can be turned off or deleted from the web app or the extension if a sender turns abusive or sells your address.

Replies from a burner address

Replies pass through the vendor's servers so the recipient sees the burner address, not your personal one.

Spam quarantine

Suspected spam is held for review and deleted after 14 days if you do not release it; the FAQ says quarantine is on every plan.

Multiple recipients and custom domains

A burner can forward to several inboxes, and burners can be recreated on verified private domains.

Firefox Relay

Email masks

Each mask forwards to your true address, and you can turn forwarding off for one mask without touching the rest.

Browser extension

An add-on creates a mask on a site's sign-up form. The homepage links the Firefox add-on, and masks can be made from the dashboard in other browsers.

Tracker removal

Common email trackers are stripped from forwarded mail, and this is included on the free plan.

Promo blocking

Premium can block promotional mail while still forwarding receipts and shipping notices. Blocking is not exact, so important mail can occasionally be caught.

Anonymous replies

Premium lets you reply to a forwarded email within 3 months of receiving it, and gives a custom mozmail.com mask domain.

Phone masking

A phone mask forwards calls and texts to your number and lets you reply to texts. The phone plan is a waitlist.

Burner Mail

Pricing could not be confirmed. See burnermail.io.

Firefox Relay

• Limited email protection$0

  5 email masks, the browser extension and removal of email trackers.

• Relay PremiumCustom

  Unlimited masks, a custom mask domain, replies and promo blocking; no price shown, waitlist only.