"Connection not secure" everywhere on firefox 70.0.1 although it's https protocol.
It's a pacman install.
I reinitialized firefox, reboot several time my computer.
My clock is on the right time.
System is up-to-date.
The certificate doesn't even show up like it would be for an non encrypted http connection.

This happens only on firefox, brave and the native browser are working fine.

Someone to help me understand what's going on here? :s