Web browsers can't find my certificates on KDE Neon (Ubuntu) 22.04

Operating Systems & Open Source Linux
1

I’ve tried the following applications:

  • Firefox (Snap)
  • Vivaldi (DEB)
  • Edge (Flatpak)

I placed them on both /etc/pki/ca-trust/source/anchors/ & /etc/ssl/certs/ and ran update-ca-certificates. Any ideas what I’m missing?

Edge (Flatpak) on my Rocky Linux 9 works fine.