Digital Certificate Setup for qutebrowser

How to use Spanish government digital certificates in qutebrowser by importing them into the system NSS shared database.

Because qutebrowser relies on QtWebEngine (Chromium-backed) rather than Firefox's internal

NSS database, it looks for client certificates in the system-wide directory located at ~/.pki/nssdb/.

To move a certificate out of LibreWolf:

● Navigate to Settings > Privacy & Security.

● Scroll down to Certificates and click View Certificates.

● Under the Your Certificates tab, select the target certificate and click Backup....

● Save the file (e.g., ~/Downloads/cert.p12) and secure it with a backup password.

Initialize the shared NSS database and inject the PKCS#12 file using terminal utilities:

mkdir -p ~/.pki/nssdb

certutil -N -d sql:$HOME/.pki/nssdb

pk12util -i ~/Downloads/cert.p12 -d sql:$HOME/.pki/nssdb

When prompted, enter the password used to encrypt the certificate file during export.

Now when using Qutebrowser you can use the digital certificate and password to access any site that uses the system.

Posted

22:59 15 June 2026