u2f-useragent-adapter

The u2f-useragent-adapter Chrome extension helps users bypass restrictions imposed by websites that disable security key-based Universal 2nd Factor (U2F) authentication based on browser user agents. Many sites, such as Facebook, block U2F when the browser isn't identified as Chrome, prompting for alternate methods like TOTP codes. This extension spoofs your browser's user agent during U2F authentication, making your browser appear as Chrome. This allows seamless use of hardware security keys like Yubikeys to provide strong second-factor authentication without switching browsers. The extension maintains the security benefits of U2F while improving compatibility and user experience across sites with strict user agent checks.