Firefox Relay vs 20i
On privacy it's 20i. On price it's Firefox Relay. On features it's 20i. Here's everything side by side, last checked 25 October 2026.
Firefox Relay or 20i: which should you choose?
- Go for Firefox Relay if you'd like a free plan before you pay anything and apps whose code is public.
- 20i suits you best if you want your mail kept in the United Kingdom; to use your own domain, like you@yourname.co.uk; and more space for your mail: 10 GB.
| Feature | Firefox Relay | 20i |
|---|---|---|
| Overall | 2.5 | Not rated |
| Privacy | 1.0 | 2.5 |
| Price | 5.0 | Not rated |
| Features | Not rated | 4.5 |
| Cheapest plan | Premium $0.99 a month | Email hosting Not confirmed |
| Free plan | Yes, 5 aliases | No |
| Storage | Forwards only | 10 GB |
| Your own domain | Own subdomain only | ✓ Yes |
| End-to-end encryption | No | No |
| Company based in | United States (Mozilla) | United Kingdom |
| Your data is kept in | United States | United Kingdom |
| Founded | 2020 | Unknown |
| Free trial | Free plan | Unknown |
| Funded by advertising | No | No |
| Works in any mail app | No, its own apps only | ✓ IMAP and SMTP |
| Calendar and contacts | No | ✓ Yes |
| Aliases | Unlimited aliases | Yes |
| Open-source apps | ✓ Yes | No |
| Sign up without ID | No | No |
| White label | No | ✓ Yes |
| Reader offer | None | None |
| Last checked | 25 October 2026 | 25 October 2026 |
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How Firefox Relay and 20i differ
- Firefox Relay's cheapest plan is Premium ($0.99 a month); 20i's is Email hosting (Not confirmed).
- Firefox Relay has a free plan (5 aliases); 20i has no free plan.
- Space: Firefox Relay gives no storage, as it forwards mail on, 20i 10 GB of storage.
- Data location: United States for Firefox Relay, United Kingdom for 20i.
- The companies sit under different laws: Firefox Relay in United States (Mozilla), 20i in United Kingdom.
- You can use your own domain with 20i, but not with Firefox Relay.
- Mail apps: Firefox Relay only works in its own apps; 20i works in any mail app over IMAP.
- Aliases: Firefox Relay offers unlimited aliases, 20i yes.
Common questions
Is Firefox Relay more private than 20i?
20i scores 2.5 out of 5 for privacy and Firefox Relay 1. 20i gives you your mail kept in the United Kingdom.
Can I use my own domain with Firefox Relay or 20i?
Only 20i does (Yes). With Firefox Relay your address stays on its own domain.
Where is my email stored with Firefox Relay and 20i?
Firefox Relay keeps it in the United States. 20i keeps it in the United Kingdom.
Can I use Firefox Relay and 20i in Apple Mail or Outlook?
Firefox Relay only works in its own apps. 20i works in any mail app over IMAP.
Price changes and news
I haven't seen either change its price since I started checking on 25 October 2026.
The latest headlines: Firefox Relay news · 20i news.
Alternatives to Firefox Relay and 20i
Firefox Relay vs mailbox.org · 20i vs mailbox.org · Firefox Relay vs Posteo · 20i vs Posteo · Firefox Relay vs Proton Mail · 20i vs Proton Mail
Moving your email
Moving between any two providers works the same way. Pick your two providers for the steps.