Jun 23, 2025

Removal of TLS trust bit from Roots R1 and R3 by Mozilla

Mozilla Announcement

Mozilla has announced their plans to start removing the TLS and Secure Mail trust bits from all of the older Roots in their root program. Mozilla will be removing website and S/MIME trust bits from Roots according to the following schedule:

Key Material Created	Removal of Websites Trust Bit	Removal of S/MIME Trust Bit
Before 2006	April 15, 2025	April 15, 2028
2006-2007	April 15, 2026	April 15, 2029
2008-2009	April 15, 2027	April 15, 2029
2010-2011	April 15, 2028	April 15, 2031
2012- April 14, 2014	April 15, 2029	April 15, 2032
April 15, 2014 - present	15 years from creation	18 years from creation

How will this affect GlobalSign?

Roots	TLS Stop Issuance	Mozilla Bit Removal
GlobalSign Root R1	March 14, 2024	April 15, 2025
GlobalSign Root R3	March 15, 2026	April 15, 2027
GlobalSign Root R5 (ECC)	March 15, 2028	April 15, 2029
GlobalSign Root R6	November 09, 2028	December 10, 2029

What's Changing?

The following products will be modified as part of disabling TLS issuance from Root R1:

For Atlas Customers:

• Starting with the 2025 Q3 rotation (July 8, 2025, per our schedule posted here), a new set of CAs under our TLS dedicated roots for optional use will be created.
  
  View sites secured with TLS certificates issued under our R46 and E46 TLS dedicated Roots here: 
  https://support.globalsign.com/ca-certificates/root-certificates/globalsign-root-certificates

• In 2026 Q3, all issuance to the TLS dedicated roots will be moved. We will supply R3-R46 and R5-E46 cross certificates in providing browsers and applications with a chain back to R3 and R5 for the best ubiquity.

For GCC Customers:

• On July 27, 2026, retail and partner products will be cut over to dedicated TLS roots CAs.
• In 2025 Q3, a new set of MSSL OV/EV CAs will be created for optional use will be created. All issuance will be moved in 2026 Q3.
   

For customers that don’t necessarily need browser support, we highly recommend using our IntranetSSL offering which permits longer certificate validity, longer domain reuse, no CAA checks, and additional privacy since certificates are not posted to CT logs.

Products Impacted:

• TLS: DV, OV, EV
• MSSL: OV, EV