Firefox Relay

Firefox Relay lets you generate email aliases that forward to your real inbox. Use it to hide your real email address and protect yourself from hackers and unwanted mail.

Firefox Relay helps you protect your primary email by generating unique, random aliases to use when signing up for online accounts, apps, or newsletters. These aliases forward messages to your real inbox, preventing unwanted emails and protecting your identity. If an alias starts receiving spam, you can block or delete it, stopping further messages without exposing your real email.

Upgrade to Firefox Relay Premium for unlimited aliases, the ability to send replies, and custom domain aliases that are easy to remember and share. With features like contextual menu integration and seamless browser support, Firefox Relay offers a simple yet powerful way to maintain your online privacy and reduce spam.

By:
Firefox
Daily users:
205,045 -6,978
Rating:
4.17
(2,125)
4 new ratings
Version:
2.8.1 Last updated: 2024-09-03
Version code:
5661329
Creation date:
2020-04-02
Risk:
High risk impact Low risk likelihood
Permissions:
  • <all_urls>
  • storage
  • menus
  • contextMenus
Size:
1.21MB
URLs:
Website
Full description:
See detailed description
Source:
Firefox Browser Add-ons
Updated:
a day ago

Other platforms

Firefox Relay (v2.8.1)
10,000 3.95 (42)

User reviews

Users appreciate Firefox Relay's concept and find it a valuable and reliable add-on that enhances their browsing. However, limitations like the small number of free aliases and restrictions on underscore usage in email aliases frustrate users. Additionally, some report spam issues and poor customer support, particularly a lack of response from the Relay team. There are also reported bugs regarding trial usage counts that have not been accurate, leading to negative experiences.
Pros
  • The add-on is considered an excellent and reliable extension that enhances the Firefox browsing experience.
  • The idea behind the add-on is appreciated and seen as very helpful by users.
  • Users find the Mozilla Add-ons platform trustworthy and easy to navigate.
Cons
  • The free plan is very limited, offering only 5 aliases, which some users find insufficient.
  • Users experience issues with underscore characters in email aliases, restricting customization.
  • Lack of response or support from the Relay team, especially for paying customers, causes dissatisfaction.
  • Some users receive spam through mozmail.com addresses and cannot identify or unsubscribe from the spam source.
  • There are complaints about erroneous usage limits being reached without actual use, causing frustration.
Recent reviews
by Fi*****, 2025-06-14

Avaliando o Firefox minha opinião sincera e honesta , o Firefox é um excelente conteudo. O criadouro esta de parabens.
by Fi*****, 2025-06-14

I've been using Mozilla Add-ons for years, and it's always been a reliable place to find safe and useful extensions for Firefox. The site is easy to navigate, and I appreciate how thoroughly each add-on is reviewed and described. It really enhances the browser experience. Highly recommended for anyone looking to customize their Firefox!
by Th*****, 2025-06-13
View all user reviews ›

Extension safety

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Firefox Relay requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Browser Add-ons, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Firefox Relay has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • Low This extension was updated more than 6 months ago. Older versions are more likely to be stable and safe.
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Upgrade to see full risk analysis details

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