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Created attachment 1919324 [details]
Trying to login to Cockpit with Firefox 106.0 on Windows 11

Description of problem: After updating my laptop to Windows 11, I tried logging in on my RHEL 8.6 Cockpit. I cannot login, and the login prompt says "This web browser is too old to run the Web Console (missing selector(:is():where()))". The "Username" and "Password" boxes are not displayed.
This did not happen on Windows 10 on the exact same laptop this morning.


Version-Release number of selected component (if applicable):
Windows 11, version 21H2, build 22000.1098 (IBM image)
Firefox 106.0
Cockpit version 264.1
RHEL version: Linux version 4.18.0-372.26.1.el8_6.x86_64 (mockbuild.eng.bos.redhat.com) (gcc version 8.5.0 20210514 (Red Hat 8.5.0-10) (GCC)) #1 SMP Sat Aug 27 02:44:20 EDT 2022

How reproducible:
Each time I open Firefox on https://[server_ip_address]:9090/

Steps to Reproduce:
1. Open Firefox
2. Type https://[server_ip_address]:9090/ in the address bar
3. Enjoy the error message

Actual results:
Login prompt says "This web browser is too old to run the Web Console (missing selector(:is():where()))". The "Username" and "Password" boxes are not displayed.

Expected results:
Asking for username/password, being able to login, navigate and operate my server through Cockpit

Additional info:

*** This bug has been marked as a duplicate of bug 2129055 ***