Disable Passkeys автор TheConfax

As of 2026, this is the only way to have granular control over passkey prompts and passkey autofill in Firefox.

This extension blocks WebAuthn requests and can be configured to block passkey login, creation, and autofill, independently.

Disable passkey prompts on every website, or use the filters to whitelist/blacklist specific domains, allowing you to use traditional passwords without interruption.

Source: https://github.com/TheConfax/Disable-Passkeys