FIDO U2F API
- UNOFFJavaScript API to interact with Universal Second Factor (U2F) devices. This allows users to log into sites more securely using two-factor authentication with a USB dongle.
Chrome
- 4 - 37: Not supported
- 38 - 40: Not supported
- 41 - 97: Supported
- 98 - 105: Disabled by default
- 106 - 122: Not supported
- 123: Not supported
- 124 - 126: Not supported
Edge
- 12 - 18: Not supported
- 79 - 105: Supported
- 106 - 122: Not supported
- 123: Not supported
Safari
- 3.1 - 12.1: Not supported
- 13 - 17.3: Supported
- 17.4: Supported
- TP: Supported
Firefox
- 2 - 46: Not supported
- 47 - 66: Disabled by default
- 67 - 111: Supported
- 112 - 113: Disabled by default
- 114 - 123: Not supported
- 124: Not supported
- 125 - 127: Not supported
Opera
- 9 - 39: Not supported
- 40: Supported
- 41: Not supported
- 42 - 107: Supported
- 108: Supported
IE
- 5.5 - 10: Not supported
- 11: Not supported
Chrome for Android
- 122: Not supported
Safari on iOS
- 3.2 - 13.2: Not supported
- 13.3 - 17.3: Supported
- 17.4: Supported
Samsung Internet
- 4 - 22: Not supported
- 23: Not supported
Opera Mini
- all: Not supported
Opera Mobile
- 10 - 12.1: Not supported
- 80: Not supported
UC Browser for Android
- 15.5: Not supported
Android Browser
- 2.1 - 4.4.4: Not supported
- 122: Not supported
Firefox for Android
- 123: Supported
QQ Browser
- 14.9: Not supported
Baidu Browser
- 13.52: Not supported
KaiOS Browser
- 2.5: Disabled by default
- 3: Supported
The U2F API is being decommissioned (only the API, not the U2F protocol) and superseded by WebAuthn.