У вашего броузера проблема в совместимости с HTML5
Simple steps to reset root Password
Restart your system
Select “Advanced options for Kali GNU/Linux” in startup menu using arrow mark press enter
enter into recovery mode and press “e“
In editing screen go at the last line you will find “sda1 ro single initrd=/install/gtk/nitrd.gz”
Change “ro” to “rw“
add “init=/bin/bash” at the end of the line.
“sda1 rw single initrd=/install/gtk/nitrd.gz init=/bin/bash”
press F10 or CTRL-X to boot, or CTRL-C or F2 for a command line or esc to discard edit and return to GRUB menu.
Command window will open
now set a password using command “passwd root” then enter
type your new password
reboot your system “reboot -f“
https://shahidmobin.wordpress.com/2019/06/02/how-to-reset-root-password-of-kali-linux/