Stop navigating to Fastmail settings every time you need a masked email. This Fastmail privacy extension lets you create aliases quickly from any webpage — the fastest shortcut for disposable email on Chrome.
Masked emails are unique, randomly-generated addresses that forward to your real inbox. Use them when signing up for services to protect your privacy and control spam.
Each service gets a unique address. If one leaks, your real email stays safe.
Getting unwanted mail? Disable or delete the masked address instantly.
See exactly which service shares your data by tracking which address is used where.
Creating a masked email through Fastmail's settings is cumbersome — you have to navigate away from the page you're on, open settings, create the address, copy it, and go back.
This extension fixes that. Two clicks and you have a fresh masked email copied to your clipboard, right where you need it.
Create a Fastmail API token with only the "Masked Email" scope in your Fastmail settings.
Get it for free from the Chrome Web Store and paste your API token when prompted.
Click the extension icon, hit create — your new masked email is ready and copied to clipboard.
Your security is the whole point. Here's how the extension keeps your data safe.
Your API token never leaves your browser's local storage.
Zero analytics, zero tracking, zero telemetry.
Full source code available on GitHub for anyone to audit.
Only requests the 'Masked Email' API permission.
A masked email is a unique, randomly-generated email address provided by Fastmail that forwards to your real inbox. You can use a different masked email for each service you sign up for, protecting your real address from spam and data breaches.
The extension connects to Fastmail's API using a token you provide. When you click the extension icon and hit create, it generates a new masked email address and copies it to your clipboard, all in just two clicks.
Yes. Your API token is stored locally in your browser's storage and is only sent directly to Fastmail's servers. The extension collects zero data, has zero analytics, and is fully open source for anyone to audit.
Password managers like 1Password and Bitwarden already have built-in Fastmail masked email integration. This extension is perfect if you use Chrome's built-in password manager instead, which doesn't offer that integration.
Yes, the extension is completely free and open source. You can install it from the Chrome Web Store and view the full source code on GitHub.
Install this free Fastmail privacy extension and start protecting your inbox today.
Install from Chrome Web Store