mailservr vs Firefox Relay
Firefox Relay is Mozilla's email masking product that lets you create aliases to protect your real address. The free tier is limited to 5 aliases with no custom domains. The premium plan ($1.99/month) adds unlimited aliases and a phone mask. It's forwarding-only with no inbox or reply capability on the free tier.
Pay once, use forever
Firefox Relay charges Free (5 aliases) or $1.99/month premium. mailservr is a one-time purchase — no recurring fees, no surprise charges. You own it forever after a single payment.
Feature comparison
A detailed look at how mailservr and Firefox Relay compare across key features.
Pricing
Aliases
Domains
Platform
Sending
Privacy
Why choose mailservr over Firefox Relay
Firefox Relay is convenient if you're already in the Firefox ecosystem and just need a few quick aliases. But for serious email alias management with custom domains, an inbox, and no subscription, mailservr is the more capable choice.
- Pay once instead of $1.99 every month ($24/year adds up fast)
- Custom domain support coming soon for professional aliases
- Built-in inbox — no need to check another email provider
- API access for automation and integrations
- Far more aliases even on the base plan (50 vs 5 free)
- Full send and reply support on all plans
- Works with Bitwarden and 1Password for automatic alias generation
Frequently asked questions
Is mailservr better than Firefox Relay?
For serious email alias usage, yes. mailservr offers a built-in inbox, API access, and one-time pricing — with custom domain support coming soon. Firefox Relay's free tier only gives you 5 aliases with no inbox or API.
How much does Firefox Relay cost compared to mailservr?
Firefox Relay Premium costs $1.99/month ($24/year). mailservr charges a one-time fee — you pay once and use it forever. After about a year, mailservr has already saved you money.
Does Firefox Relay support custom domains?
No. Firefox Relay only provides aliases on Mozilla's relay domains. mailservr currently offers shared domains, with custom domain support coming soon.
Can I reply to emails with Firefox Relay?
Only on the premium plan, and replies are forwarded through Mozilla's servers. mailservr lets you send and reply directly from aliases on all plans through its built-in inbox.
Switch from Firefox Relay to mailservr
Pay once and get private email aliases with a built-in inbox and API access. No recurring fees, ever.