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Firefox Relay

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Visit Firefox Relay Alternatives Pricing

Firefox Relay's own site

Plans

PlanBilled and limitsPrice
Limited email protectionFree · 5 email masks · browser extension · email-tracker removalFree
Email protectionJoin the Waitlist · Unlimited email masks · browser extension · tracker removal · promotional-email blocking · custom Relay email domain · anonymous email repliesOn request
Email & phone protectionJoin the Waitlist · Unlimited email masks · phone masking · call and text forwarding · promotional-email blocking · anonymous repliesOn request
Add VPN protectionJoin the Waitlist · Email and phone protection features · Mozilla VPN accessOn request

As relay.firefox.com lists them, read 15 Oct 2026. The maker's own page has the final word.

Facts from Firefox Relay's own pages

Abuse controls
Relay requires a verified email account and rate-limits daily mask creation to deter malicious use. · relay.firefox.com, 15 Oct 2026
Add-on complaint: mask limit mismatch
Firefox Add-ons reviewers reported that the extension still displayed a five-mask limit after the service limit had increased to 50. · addons.mozilla.org, 15 Oct 2026
API authentication
The API documentation lists Mozilla-account token authentication and cookie authentication for protected operations. · mozilla.github.io, 15 Oct 2026
API surface
The public API documents authenticated endpoints for listing, creating, updating, and deleting email masks plus phone, SMS, and call operations. · mozilla.github.io, 15 Oct 2026
Attachment limit
Forwarded emails larger than 10 MB are not delivered. · relay.firefox.com, 15 Oct 2026
Availability
Free Relay is offered in most countries, while Premium is listed for selected European countries plus Canada, Malaysia, New Zealand, Singapore, the United Kingdom, and the United States. · relay.firefox.com, 15 Oct 2026
Browser and mobile access
Masks can be generated from other browsers or mobile devices by signing in to the Relay dashboard. · relay.firefox.com, 15 Oct 2026
Browser and mobile use
Users can generate masks on other browsers or mobile devices by signing in to the Relay dashboard. · relay.firefox.com, 3 Oct 2026
Dashboard
The dashboard lets users create and label masks and block calls, texts, or emails from masks receiving too much spam. · relay.firefox.com, 3 Oct 2026
Data collection
Relay records the websites where masks were used and lets users opt out of that labeling and synchronization. · relay.firefox.com, 15 Oct 2026
Developer documentation
Mozilla publishes generated API reference documentation with request schemas, response examples, authorization details, and endpoint paths. · mozilla.github.io, 15 Oct 2026
Email mask forwarding
Email masks are private addresses that forward messages to the user's true email address. · relay.firefox.com, 3 Oct 2026
Email masks
Masks can be generated for websites, applications, stores, or restaurants and managed from a dashboard. · relay.firefox.com, 15 Oct 2026
Email replies
Premium users can reply to a forwarded email within three months of receiving it; adding CC or BCC exposes the original email address. · relay.firefox.com, 3 Oct 2026
Extension availability
The Firefox Relay extension listing says it is available on Firefox for Android. · addons.mozilla.org, 3 Oct 2026
Extension permissions
The Firefox add-on requests access to data on all websites to provide its masking workflow. · addons.mozilla.org, 15 Oct 2026
Extension version
The Firefox add-on page lists version 2.8.1, a 1.21 MB package, and a last update of December 6, 2023. · addons.mozilla.org, 15 Oct 2026
Forwarding limit
Relay does not forward email attachments larger than 10 MB. · relay.firefox.com, 3 Oct 2026
Founded
1998 · relay.firefox.com, 28 Sept 2026
Important-use warning
Mozilla advises using a real address for banks, doctors, lawyers, identity verification, and messages requiring important attachments. · relay.firefox.com, 15 Oct 2026
Licence
The fx-private-relay repository is licensed under the Mozilla Public License 2.0. · github.com, 15 Oct 2026
Limit: anonymity concerns
Chrome-Stats records reviewer concerns that replying can expose the underlying email address and that refund handling is unclear. · chrome-stats.com, 15 Oct 2026
Limit: paid features
Chrome-Stats says reviewers complain that full functionality requires a subscription and that free use is limited. · chrome-stats.com, 15 Oct 2026
Limit: site breakage
Chrome-Stats summarizes reports that Relay can break sign-in forms and checkout flows on some sites. · chrome-stats.com, 15 Oct 2026

Where Firefox Relay stands on Freedom251

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