Mailfence vs Firefox Relay
On privacy it's Mailfence. On price it's Firefox Relay. On features it's Mailfence. Here's everything side by side, last checked 25 October 2026.
Should you pick Mailfence or Firefox Relay?
- Mailfence is the better pick if you want your email to stay in Belgium; to use your own domain, like you@yourname.co.uk; and more space for your mail: 10 GB.
- Firefox Relay is the better pick if you want to pay less: $0.99 a month and apps whose code is public.
| Feature | Mailfence | Firefox Relay |
|---|---|---|
| Overall | 4.0 | 2.5 |
| Privacy | 3.5 | 1.0 |
| Price | 4.0 | 5.0 |
| Features | 4.5 | Not rated |
| Cheapest plan | Entry €3.50 a month | Premium $0.99 a month |
| Free plan | Yes, 500 MB–1 GB, no own domain | Yes, 5 aliases |
| Storage | 10 GB | Forwards only |
| Your own domain | ✓ Yes | Own subdomain only |
| End-to-end encryption | Optional (PGP or encrypted storage) | No |
| Company based in | Belgium | United States (Mozilla) |
| Your data is kept in | Belgium | United States |
| Founded | 2013 | 2020 |
| Free trial | Free plan | Free plan |
| Funded by advertising | No | No |
| Works in any mail app | ✓ IMAP and SMTP | No, its own apps only |
| Calendar and contacts | ✓ Yes | No |
| Aliases | Yes | Unlimited aliases |
| Open-source apps | No | ✓ Yes |
| Sign up without ID | No | No |
| White label | No | No |
| Reader offer | None | None |
| Last checked | 22 October 2026 | 25 October 2026 |
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Where they differ
- Mailfence's cheapest plan is Entry (€3.50 a month); Firefox Relay's is Premium ($0.99 a month).
- For free, Mailfence gives you a free plan (500 MB–1 GB, no own domain), and Firefox Relay a free plan (5 aliases).
- Mailfence comes with 10 GB of storage and Firefox Relay with no storage, as it forwards mail on.
- Data location: Belgium for Mailfence, United States for Firefox Relay.
- Mailfence is based in Belgium and Firefox Relay in the United States (Mozilla), so different privacy laws apply.
- Mailfence offers optional encryption (PGP or encrypted storage); Firefox Relay doesn't encrypt mail end to end.
- Mailfence lets you bring your own domain name; Firefox Relay doesn't.
- Mailfence works in any mail app over IMAP, and Firefox Relay only works in its own apps.
- For extra addresses, Mailfence has yes and Firefox Relay has unlimited aliases.
Common questions
Which is more private, Mailfence or Firefox Relay?
Mailfence scores 3.5 out of 5 for privacy and Firefox Relay 1. Mailfence gives you your email to stay in Belgium.
Which is cheaper, Mailfence or Firefox Relay?
Firefox Relay is cheaper. Its Premium plan is $0.99 a month, against €3.50 a month for Mailfence's Entry. Firefox Relay and Mailfence also have a free plan. Check the renewal price before you pay, as some first-year prices go up.
Do Mailfence and Firefox Relay work with my own domain?
Only Mailfence does (Yes). With Firefox Relay your address stays on its own domain.
Where do Mailfence and Firefox Relay keep my email?
Mailfence keeps it in Belgium. Firefox Relay keeps it in the United States.
Do Mailfence and Firefox Relay work in other mail apps?
Mailfence works in any mail app over IMAP. Firefox Relay only works in its own apps.
Price changes and news
Neither price has changed since my first check on 22 October 2026.
The latest headlines: Mailfence news · Firefox Relay news.
Alternatives to Mailfence and Firefox Relay
Mailfence vs mailbox.org · Firefox Relay vs mailbox.org · Mailfence vs Posteo · Firefox Relay vs Posteo · Mailfence vs Proton Mail · Firefox Relay vs Proton Mail
Moving your email
Moving to Mailfence · Moving from Mailfence. Or see all my switching guides.