Help
cancel
Showing results for 
Search instead for 
Did you mean: 
Copilot Lvl 2
Message 1 of 23

two-factor hardware keys no longer working in firefox

Solved! Go to Solution.

Hi, does anyone know did something change with u2f at Github?  As of today, Firefox 60.5.2esr is being blocked from using Yubikeys to login.

22 Replies
Solution
Copilot Lvl 2
Message 2 of 23

Re: two-factor hardware keys no longer working in firefox

Resolved by github today.

Ground Controller Lvl 1
Message 3 of 23

Re: two-factor hardware keys no longer working in firefox

Seeing this image right now.

 

Screenshot from 2019-03-19 20-42-21.png

 

Background info from Firefox Troubleshooting Information:

Version 65.0.2
Build ID 2019022821563

OS Linux 5.0.2-arch1-1-ARCH

 

Ground Controller Lvl 2
Message 4 of 23

Re: two-factor hardware keys no longer working in firefox

I cannot register any keys with Firefox 66.0.3. `u2f` is enabled in `about:config` and it definitely works on other sites. Github seems to only support Chrome for registering keys for some reason.

Ground Controller Lvl 2
Message 5 of 23

Re: two-factor hardware keys no longer working in firefox

As others have reported, this is not actually resolved. Firefox 67 just released as stable, which has u2f enabled as a default. I'm still seeing the message even after successfully using u2f on other sites:

 

Screenshot_20190528_163303.png

 

More info:

- Firefox 67.0 (64-bit) fedora - 1.0

- Fedora 29 x64

Ground Controller Lvl 1
Message 6 of 23

Re: two-factor hardware keys no longer working in firefox

Tried to register a U2F key today. Same problem as others.

Using Firefox 67 on Winfows 10.

Copilot Lvl 2
Message 7 of 23

Re: two-factor hardware keys no longer working in firefox

This is not resolved.

 

Right now if I get a login prompt from GitHub while I'm using Firefox, it asks me to enter my password. If I change my user agent to Chrome, still using Firefox, it properly adds that I can press a button on my security key to log in.

 

So U2F is still being blocked in Firefox based purely on user agent.

Ground Controller Lvl 1
Message 8 of 23

Re: two-factor hardware keys no longer working in firefox

Looks like everything except for Chrome is blocked. I wonder what could be the reason for this.

Community Manager
Message 9 of 23

Re: two-factor hardware keys no longer working in firefox

Sorry for the trouble you've all had here. We've recently pushed some changes that should have re-enabled the work-around you were using previously. So please do try signing in again as you had done prior to these last few days.

 

If you continue to encounter issues though, please do let us know!

Thanks for being here, sharing, and keeping our community awesome!
Best,
AndreaG

Mark helpful posts with Accept as Solution to help other users locate important info. Don't forget to give Kudos for great content!

Ground Controller Lvl 1
Message 10 of 23

Re: two-factor hardware keys no longer working in firefox

I still can't register my Yubikey through Firefox, there is this message on the security page : "This browser doesn’t support the FIDO U2F standard yet. We recommend updating to the latest Google Chrome to start using security key devices. ".

 

I succesfully registered and use my Yubikey as U2F through this browser on other providers (AWS, ...).