Gmail MFA titan key

Gmail is no longer recognizing MFA via USB Titan key while using Firefox. Issue started today, after the latest Firefox update. Prior to updating Firefox, I had no issues signing into gmail with USB Titan key MFA.

When I attempt to sign into my gmail account, I enter my email and password, then I am redirected to the MFA screen where Firefox prompts me to touch my USB Titan security key. After touching the Titan key, gmail says it can't verify my identity and I'm therefore unable to sign into my gmail account.

I tried clearing cache and cookies in Firefox. I also tried a private Firefox window.

My Titan key works. I successfully used it to sign into my Lastpass account in Firefox without issue. I was also able to sign into my gmail account with Titan key MFA using a different browser. This problem is only happening to gmail in Firefox.