mail.com vs Firefox Relay
Firefox Relay wins on privacy, they tie on price and mail.com wins on features. Every fact below was checked on or before 25 October 2026.
Should you pick mail.com or Firefox Relay?
- mail.com is the better pick if you want a mailbox that costs nothing; more space for your mail: 65 GB; and to read your mail in any app, such as Apple Mail, Outlook or Thunderbird.
- Firefox Relay is the better pick if you want a provider with no advertising business behind it and open-source apps anyone can check.
| Feature | mail.com | Firefox Relay |
|---|---|---|
| Overall | 2.5 | 2.5 |
| Privacy | 0.0 | 1.0 |
| Price | 5.0 | 5.0 |
| Features | 4.0 | Not rated |
| Cheapest plan | Free Free | Premium $0.99 a month |
| Free plan | Yes, with adverts | Yes, 5 aliases |
| Storage | 65 GB | Forwards only |
| Your own domain | No | Own subdomain only |
| End-to-end encryption | No | No |
| Company based in | United States | United States (Mozilla) |
| Your data is kept in | United States | United States |
| Founded | 1995 | 2020 |
| Free trial | Free | Free plan |
| Funded by advertising | Yes, or its parent company is | No |
| Works in any mail app | ✓ IMAP and SMTP | No, its own apps only |
| Calendar and contacts | ✓ Yes | No |
| Aliases | Up to 10 addresses | Unlimited aliases |
| Open-source apps | No | ✓ Yes |
| Sign up without ID | No | No |
| White label | No | No |
| Reader offer | None | None |
| Last checked | 25 October 2026 | 25 October 2026 |
Want to add another? Open this in the compare tool.
The key differences
- Cheapest plans: mail.com Free, Free. Firefox Relay Premium, $0.99 a month.
- For free, mail.com gives you a free plan (with adverts), and Firefox Relay a free plan (5 aliases).
- mail.com comes with 65 GB of storage and Firefox Relay with no storage, as it forwards mail on.
- mail.com is based in the United States and Firefox Relay in the United States (Mozilla), so different privacy laws apply.
- mail.com works in any mail app over IMAP, and Firefox Relay only works in its own apps.
- Only mail.com is part of an advertising business.
- For extra addresses, mail.com has up to 10 addresses and Firefox Relay has unlimited aliases.
Questions people ask
Which is more private, mail.com or Firefox Relay?
Firefox Relay scores 1 out of 5 for privacy and mail.com 0. Firefox Relay gives you a provider with no advertising business behind it and open-source apps anyone can check.
Which is cheaper, mail.com or Firefox Relay?
mail.com costs nothing to start (Free). Firefox Relay's cheapest plan, Premium, is $0.99 a month. Firefox Relay has a free plan too: 5 aliases.
Do mail.com and Firefox Relay work with my own domain?
No, neither lets you use your own domain, so your address stays on theirs.
Where do mail.com and Firefox Relay keep my email?
Both keep it in the United States.
Do mail.com and Firefox Relay work in other mail apps?
mail.com works in any mail app over IMAP. Firefox Relay only works in its own apps.
Recent price changes
I haven't seen either change its price since I started checking on 25 October 2026.
The latest headlines: mail.com news · Firefox Relay news.
Also worth a look
mail.com vs mailbox.org · Firefox Relay vs mailbox.org · mail.com vs Posteo · Firefox Relay vs Posteo · mail.com vs Proton Mail · Firefox Relay vs Proton Mail
Moving your email
Whichever you choose, the move follows the same steps. Pick your two providers for the steps.