Fastmail Masked Email Inserter by dsellig

Fastmail Masked Email lets you generate a fresh, unique Masked Email address and drop it straight into the email or username field you're filling in - no copy, no paste, no switching tabs.

How it works

Click in any email/username field.
Trigger the extension: the toolbar button, the right-click menu ("Insert Fastmail masked email"), or the shortcut Ctrl+Shift+M.
A new Masked Email is created in your Fastmail account and inserted in place.


Features

One-click "Generate & Insert" from the toolbar popup.
Right-click context-menu entry on any editable field.
Keyboard shortcut (Ctrl+Shift+M).
Optional email prefix and "create as enabled" toggle.
The address is automatically labelled with the site you're on.
Interface available in English, Dutch, French, German and Spanish.


Privacy first Your Fastmail API token is stored locally in your browser. The extension talks only to Fastmail's official API - no analytics, no trackers, no third-party servers. See the privacy policy for details.

Requirements A Fastmail account with Masked Email support and an API token (created in your Fastmail settings).