Email Privacy | Firefox Relay Alternatives
5 Best Firefox Relay Alternatives for Email Privacy in 2025
If you’re a tech-savvy privacy enthusiast, you already know that using one email for everything can lead to spam, phishing, and data breaches. In this comprehensive review, we examine the top five Firefox Relay alternatives available in 2025. We’ll cover ChatOdyssey Relay – our top recommendation with its free trial and then $4.99/month plan (which includes unlimited email relay, custom business emails without needing your own domain, and a free phone number for phone masking) – as well as SimpleLogin, AnonAddy, DuckDuckGo Email Protection, and Firefox Relay.

Introduction
In today’s digital landscape, safeguarding your email identity is paramount. While Firefox Relay has set a decent foundation with disposable email aliases, its limitations – such as only offering 5 aliases for free – leave plenty of room for improvement. We are convinced that the future of email privacy lies in feature-rich solutions that go further, offering not just email masking but comprehensive privacy features. In this article, we take a closer look at five alternatives that stand out in every respect.
1. ChatOdyssey Relay
ChatOdyssey Relay is a game-changer in email alias services. Not only does it provide a free trial, but its premium plan is an exceptional $4.99/month—an absolute bargain when you consider it offers unlimited email relay. Moreover, you can create custom business email addresses without the hassle of managing a separate domain. The standout feature is the inclusion of free phone masking (via ChatOdyssey Phone Relay), ensuring that both your email and phone identities are safeguarded.
In my opinion, ChatOdyssey Relay takes email privacy to a whole new level by integrating features that many competitors lack. It’s versatile and highly effective for users who refuse to compromise on privacy.
Pricing and Features
- Free Trial: Enjoy full features without initial commitment.
- Paid Plan: $4.99/month after trial – includes unlimited email relay.
- Custom Business Emails: Create professional email addresses on ChatOdyssey domains.
- Phone Masking: Integrated free phone number for call and text masking.
Pros and Cons
- Pros: Unlimited aliases, integrated phone masking, robust and versatile features, intuitive dashboard.
- Cons: Proprietary platform (not open source) and no option to use your own domain.
2. SimpleLogin
SimpleLogin is revered by privacy enthusiasts for its open-source roots and impressive customization options. With 10 free aliases and an affordable premium plan (around $3–$4/month or $36/year) unlocking unlimited aliases and custom domain support, it stands as a powerful alternative to Firefox Relay. Its reverse-aliasing feature ensures you can reply to messages without disclosing your real email address.
In my view, SimpleLogin is ideal for those who value transparency and flexibility—the service’s open-source nature invites continuous community contributions and improvements.
Pricing and Features
- Free Tier: 10 aliases with essential features.
- Premium Plan: Unlimited aliases and custom domain support for ~$3-$4/month.
- Two-Way Communication: Reply through your alias securely.
- Open Source: Fully auditable code with self-hosting options.
Pros and Cons
- Pros: Highly customizable, open-source, and offers custom domain support.
- Cons: Free plan is limited and premium is needed for full functionality.
3. AnonAddy
AnonAddy focuses on privacy-first email aliasing with an open-source approach. It allows unlimited alias creation on its free tier (with some bandwidth restrictions) and offers even more features on its Lite ($1/month) and Pro ($3/month) plans. AnonAddy supports custom domains on paid plans and provides advanced options like PGP encryption.
Personally, I appreciate AnonAddy's dedication to user control and flexibility—it’s one of the most robust solutions for anyone serious about their privacy.
Pricing and Features
- Free Tier: Unlimited aliases (with bandwidth limits) for everyday use.
- Lite Plan: $1/month for expanded features and custom domain support.
- Pro Plan: $3/month for complete features, including unlimited bandwidth.
- Open Source: Fully auditable and even self-hostable.
Pros and Cons
- Pros: Unlimited alias creation, privacy-first design, open-source transparency.
- Cons: Bandwidth limitations on the free tier and a steeper setup for non-technical users.
4. DuckDuckGo Email Protection
DuckDuckGo Email Protection is an entirely free service that focuses on automatically blocking trackers and generating disposable aliases. Part of the broader DuckDuckGo privacy ecosystem, it offers unlimited aliases and reliable tracker removal, although it does not support custom alias naming or domains.
In my opinion, while it lacks some of the advanced features of paid alternatives, its simplicity and no-cost approach make it an excellent option for those looking for quick and reliable privacy without extra bells and whistles.
Pricing and Features
- Cost: Completely free, with unlimited alias generation.
- Tracker Removal: Automatically strips trackers from forwarded emails.
- Integration: Seamless with DuckDuckGo’s browser and mobile apps.
Pros and Cons
- Pros: Zero cost, unlimited aliases, automatic tracker blocking.
- Cons: Lacks customization and advanced alias management options.
5. Firefox Relay
Firefox Relay is Mozilla’s original disposable email alias service that many users love for its simplicity and integration with the Firefox browser. While its free plan allows only 5 aliases and advanced features require a premium upgrade, it remains a solid option for those new to email masking.
In my expert opinion, Firefox Relay is reliable and backed by Mozilla’s privacy credentials—but its limitations mean that power users often opt for the more feature-packed alternatives outlined above.
Pricing and Features
- Free Tier: 5 aliases with basic functionality.
- Premium Plan: Approximately $1/month for unlimited aliases and reply capabilities.
- Integration: Best experienced with the Firefox browser.
Pros and Cons
- Pros: Simple to use, excellent tracker blocking, strong backing from Mozilla.
- Cons: Limited free alias count and less flexibility compared to alternatives.
Comparison Table
Here’s an at-a-glance look at all the alternatives we discussed. Notice that ChatOdyssey Relay not only offers unlimited email relay and custom business emails but also comes with an integrated free phone masking service.
Service | Free Tier / Trial | Pricing | Key Features |
---|---|---|---|
Firefox Relay | 5 aliases free | Free; Premium ~$1/month | Built-in tracker blocking, reply via alias (Premium), automatic alias management |
ChatOdyssey Relay | Free Trial | $4.99/month | Unlimited email relay, custom business emails (no domain setup needed), integrated free phone masking (ChatOdyssey Relay) |
SimpleLogin | 10 aliases free | Free / Premium ~$3-$4/month | Open-source, supports custom domains (Premium), two-way communication, browser extensions & mobile apps |
AnonAddy | Unlimited aliases (free with bandwidth limits) | Lite: $1/month; Pro: $3/month | Privacy-first, open-source, supports custom domains (paid), PGP encryption |
DuckDuckGo Email Protection | Unlimited aliases | Free | Automatic tracker removal, seamless integration with DuckDuckGo apps |
Final Verdict
While Firefox Relay provides a reliable introductory level of email masking, its restrictions make it less ideal for power users. In my expert opinion, ChatOdyssey Relay is the standout service for 2025 – offering an unbeatable package of unlimited email relay, custom business emails, and comprehensive phone masking for just $4.99/month after a free trial. The additional flexibility provided by SimpleLogin and AnonAddy is excellent for open-source fans, and DuckDuckGo offers a strong no-cost option, but overall, ChatOdyssey Relay delivers the most complete privacy solution.
Frequently Asked Questions
1. What exactly is Firefox Relay?
Firefox Relay is Mozilla’s email alias service designed for basic masking. In my view, while it is a decent starting point, its free alias limit makes it less suitable for heavy privacy users.
2. How is ChatOdyssey Relay different—and better—from Firefox Relay?
ChatOdyssey Relay blows Firefox Relay out of the water with its unlimited email relay, custom business email creation, and even an integrated free phone masking service. It’s my top pick for comprehensive privacy.
3. Which service offers the best open-source flexibility?
Both SimpleLogin and AnonAddy are open source and provide excellent customization. However, if I had to choose, I lean towards SimpleLogin for its balanced mix of advanced features and ease of use.
4. Is DuckDuckGo Email Protection a viable alternative despite its simplicity?
Absolutely—it’s a stellar free solution that automatically removes trackers and generates unlimited aliases, even if it doesn’t offer the advanced features of other services.
5. Why should I consider ChatOdyssey Relay if I already use Firefox Relay?
Because ChatOdyssey Relay not only provides far more aliases but also integrates phone masking and custom business email options—features Firefox Relay simply doesn’t match.
6. Which service is best suited for professional and business users?
For business users, ChatOdyssey Relay stands out. Its ability to create custom business emails without the need for a separate domain is a huge benefit, in my professional opinion.
7. What privacy risks do these services help mitigate?
These services primarily protect you from spam, phishing, and unwanted data tracking by using disposable aliases, ensuring your true email remains undisclosed—an essential shield in today’s digital age.
8. How do these email alias services enhance overall security?
They add an extra layer of security by isolating your online registrations. With additional features like PGP encryption (in AnonAddy and SimpleLogin) and tracker blocking (in DuckDuckGo), these tools provide robust protection that goes far beyond basic email forwarding.
9. Are the free tiers really enough for heavy users?
In my experience, free tiers are a good start, but for heavy users the limitations (like Firefox Relay’s 5-alias cap) quickly become a deal-breaker, which is why I recommend upgrading or choosing a service with more generous free offerings like ChatOdyssey Relay.
10. In your expert opinion, which service is the best overall for email privacy in 2025?
Without a doubt, ChatOdyssey Relay leads the pack. It delivers unparalleled value with unlimited email relay, custom business email creation, and an integrated phone masking feature—all for just $4.99/month after a free trial. It’s the clear winner for those who demand top-tier privacy.