Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.
Latest version
Version 1.6.0
Released Jun 6, 2025 - 795.25 KBWorks with firefox 58.0 and later, android 120.0 and later- You can now approve verified logins.
- Distributed device information better, allowing users to hold many more devices
Source code released under MIT License
Download Firefox and get the extensionYou'll need Firefox to use this extensionOlder versions
Version 1.5.2
Released Mar 9, 2025 - 764.27 KBWorks with firefox 58.0 and later, android 120.0 and later- Fixed zero-click logins, again.
Source code released under MIT License
Version 1.5.1
Released Mar 8, 2025 - 764.28 KBWorks with firefox 58.0 and later, android 120.0 and later- Zero click logins now work for traditional login pages.
Source code released under MIT License
Version 1.5.0
Released Feb 13, 2025 - 783.9 KBWorks with firefox 58.0 and later, android 120.0 and later- Support for multiple accounts.
Source code released under MIT License
Version 1.4.3
Released Sep 29, 2024 - 783.46 KBWorks with firefox 58.0 and later, android 120.0 and later- Device information now claims this device is either an Android or iOS tablet in favor of identifying itself as an add-on.Source code released under MIT License
Version 1.4.2.2
Released Sep 25, 2024 - 782.24 KBWorks with firefox 58.0 and later, android 120.0 and later- Removing honest device information in favor of claiming this extension is an iOS device.Source code released under MIT License
Version 1.4.2.1
Released Sep 4, 2024 - 781.12 KBWorks with firefox 58.0 and later, android 120.0 and later- Hot fix for v1.4.2Source code released under MIT License
Version 1.4.2
Released Sep 4, 2024 - 781.12 KBWorks with firefox 58.0 and later, android 120.0 and later- Zero click login doesn't fire on passing through Duo prompt screen.Source code released under MIT License
Version 1.4.1
Released Aug 28, 2024 - 780.98 KBWorks with firefox 58.0 and later, android 120.0 and later- Renamed to Auto 2FA.Source code released under MIT License
Version 1.4.0.1
Released Jun 24, 2024 - 3.23 MBWorks with firefox 48.0 and later, android 120.0 and later- Works for Android.Source code released under MIT License
Version 1.4.0
Released May 4, 2024 - 3.23 MBWorks with firefox 48.0 and later- Introduced Zero, One, and Two click logins.Source code released under MIT License
Version 1.3.90
Released Dec 11, 2023 - 3.23 MBWorks with firefox 48.0 and later- Added Traditional Prompt instructions.
- Replaced Day / Night button with browser preferences.Source code released under MIT License
Version 1.3.81
Released Dec 7, 2023 - 1.37 MBWorks with firefox 48.0 and later- Fixed image loading issueSource code released under MIT License
Version 1.3.8
Released Dec 7, 2023 - 1.39 MBWorks with firefox 48.0 and later- Renamed to Duochrome
- Added scanning QR code supportSource code released under MIT License
Version 1.3.7
Released Apr 26, 2023 - 1.04 MBWorks with firefox 48.0 and later- Graphics changes on push request detailsSource code released under MIT License
Version 1.3.6
Released Apr 25, 2023 - 1.04 MBWorks with firefox 48.0 and later- Added day/night theme
- Made setup instructions more cohesive
- Minor graphics changesSource code released under MIT License
Version 1.3.5
Released Nov 5, 2022 - 1.01 MBWorks with firefox 48.0 and later- Added the ability to toggle one-click logins.
- Minor bug fixes.Source code released under MIT License
Version 1.3.4
Released Nov 4, 2022 - 1.01 MBWorks with firefox 48.0 and later- Fixed a bug where the success checkmark doesn't display.Source code released under MIT License
Version 1.3.3
Released Nov 4, 2022 - 1.01 MBWorks with firefox 48.0 and later- Removed Auto-Logins due to security concerns.
- Approving multiple push requests is no longer possible due to security concerns. Users are given a list of active push requests and must select theirs to weed out unauthorized requests.
- Approving a push request now reveals its details (IP address, location, etc.).Source code released under MIT License
Version 1.3.2
Released Oct 29, 2022 - 1.02 MBWorks with firefox 48.0 and later- Added a warning about Auto-Logins in settings that it may not work for all organizations.
- Minor graphical changes.Source code released under MIT License
Version 1.3.1
Released Oct 27, 2022 - 1.02 MBWorks with firefox 48.0 and laterv1.3.1
- Added Automatic Logins.
DuOSU will detect when you're on the login page and will attempt to log you in.
- Minor bug fixes.Source code released under MIT License
Version 1.1.0
Released Oct 26, 2022 - 474.5 KBWorks with firefox 48.0 and laterSource code released under MIT License