SimpleLogin
Focus: email aliases and open source. Shares privacy and spam with Firefox Relay. A web app, not a browser extension. Adds iOS and Android. Rated 4.6 (Firefox Relay: 4.5).
Web AppFree planWeb, Chrome
4.6Visit
Browser Extension
Firefox Relay
Email masks from Mozilla that keep your real address private.
Built with love by Shushant Lakhyani. Building bestproductivityresources.com
What is Firefox Relay?
Firefox Relay from Mozilla creates email masks that forward messages to your real inbox, so you can sign up for sites without sharing your address. The free plan includes up to five masks and works through the website and browser extension, while Relay Premium adds unlimited masks, replies and phone masking in some countries.
Pros
- Easy masks from the browser
- Run by Mozilla
- Turn off a mask in one click
Cons
- Free plan has only five masks
- Replies and phone masks need Premium
Who should use Firefox Relay
Anyone tired of spam after signing up for newsletters and shops.
Who may not need it
People who already use a password manager with built-in email aliases.
Firefox Relay alternatives
Similar resources to Firefox Relay, picked from the directory.
Beehiiv
Focus: newsletter, email and monetisation. Also in Email and Personal Productivity, like Firefox Relay. A web app, not a browser extension. Rated 4.7 (Firefox Relay: 4.5).
Web AppFree planWeb
Privacy Badger
Focus: tracker blocking, eff and browser extension. Shares privacy with Firefox Relay. Free (Firefox Relay: Freemium). Rated 4.6 (Firefox Relay: 4.5).
Browser ExtensionFreeChrome, Firefox
4.6Visit
Shortwave
Focus: email, inbox zero and ai assistant. Also in Email and Personal Productivity, like Firefox Relay. An AI tool, not a browser extension. Adds iOS, Android and macOS. Same 4.5 rating.
AI ToolFree planWeb, iOS
4.5Visit
Have I Been Pwned
Focus: security, data breaches and passwords. Shares privacy with Firefox Relay. A website, not a browser extension. Free (Firefox Relay: Freemium). Rated 4.8 (Firefox Relay: 4.5).
WebsiteFreeWeb
4.8Visit
Upscayl
Focus: image upscaling, ai and electron. Shares privacy with Firefox Relay. A desktop app, not a browser extension. Free (Firefox Relay: Freemium). Adds Linux, macOS and Windows. Rated 4.8 (Firefox Relay: 4.5).
Desktop AppFreeLinux, macOS
4.8Visit
Free alternatives to Firefox Relay
Free resources that cover similar ground.
Speakr
Focus: transcription, audio and self-hosted. Shares privacy with Firefox Relay. A web app, not a browser extension. Free (Firefox Relay: Freemium). Adds Linux. Rated 4.7 (Firefox Relay: 4.5).
Web AppFreeWeb, Linux
4.7Visit
PureMac
Focus: macos, cleaner and open source. Shares privacy with Firefox Relay. A Mac app, not a browser extension. Free (Firefox Relay: Freemium). Adds macOS. Rated 4.6 (Firefox Relay: 4.5).
Mac AppFreemacOS
4.6Visit
ActivityWatch
Focus: time tracking, screen time and open source. Shares privacy with Firefox Relay. A desktop app, not a browser extension. Free (Firefox Relay: Freemium). Adds Windows, macOS and Linux. Same 4.5 rating.
Desktop AppFreeWindows, macOS
4.5Visit
Mulmoclaude
Focus: ai assistant, local-first and open source. Shares privacy with Firefox Relay. An AI tool, not a browser extension. Free (Firefox Relay: Freemium). Same 4.5 rating.
AI ToolFreeCross-Platform
4.5Visit
NoSignups
Focus: no signup, open source and browser tools. Shares privacy with Firefox Relay. A website, not a browser extension. Free (Firefox Relay: Freemium). Same 4.5 rating.
WebsiteFreeWeb
4.5Visit
Thunderbird
Focus: email client, calendar and open source. Shares privacy with Firefox Relay. A desktop app, not a browser extension. Free (Firefox Relay: Freemium). Adds Windows, macOS and Linux. Same 4.5 rating.
Desktop AppFreeWindows, macOS
4.5Visit
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