Unable to Sign In to My Google Accounts Using Firefox – Need Help

Hello Mozilla Firefox Support Community, I am experiencing a serious issue when trying to sign in to my two personal Google Accounts using Firefox. Both of my Google Accounts are currently locked, and despite trying Google's recommended account recovery steps multiple times, I have been unable to regain access. Google only offers SMS verification, and unfortunately, I am not given any alternative verification methods. I have tried signing in using Firefox, as well as familiar devices and locations, but I still cannot access either account. The affected accounts are: 1. [redacted from public] gmail.com 2. [redacted from public] @gmail.com I would like to know whether there is anything in Firefox's settings, privacy protection, security features, or browser configuration that could be preventing Google from recognizing my device or allowing me to complete the sign-in process. Could you please help me understand whether Firefox might be contributing to this issue and suggest any troubleshooting steps? I understand that Google controls its own account recovery process, but I would appreciate any advice or assistance from the Firefox community. Thank you very much for your time and support. Best regards