The Mozilla CA Certificate Program's list of included root certificates is stored in a file called certdata.txt in the Mozilla source code management system.

On occasion, we remove certificates from our Root Store; such certificates are listed below. Note that these data sources list only those cert removals that have happened since September 2014, which is when we began using the CCADB to maintain the root store data.
CCADB Data Usage Terms

• Removed CA Certificates (HTML)
• Removed CA Certificates (CSV)
• Removed CA Certificates (CSV with PEM of raw certificate data)
• Upcoming CA Certificate Removals (HTML)
• Upcoming CA Certificate Removals (CSV)
• Upcoming CA Certificate Removals (CSV with PEM of raw certificate data)