MFSA2025-30: Security Vulnerabilities fixed in Firefox ESR 115.23

Reference Links

• https://www.mozilla.org/en-US/security/advisories/mfsa2025-30/ (Advisory)

Child vulnerabilities

(Contains the following vulnerabilities)

• CVE-2025-2817

Frequently Asked Questions

• What vulnerabilities are addressed in MFSA2025-30?

  MFSA2025-30 addresses multiple security vulnerabilities found in Firefox ESR up to version 115.23.

• What is the severity level of MFSA2025-30?

  The severity level of MFSA2025-30 varies depending on the specific vulnerabilities fixed, but it includes critical issues that could lead to exploitation.

• How do I fix the vulnerabilities described in MFSA2025-30?

  To fix the vulnerabilities in MFSA2025-30, update your Firefox ESR to version 115.23 or later.

• Which versions of Firefox ESR are affected by MFSA2025-30?

  Firefox ESR versions prior to 115.23 are affected by the vulnerabilities described in MFSA2025-30.

• Is it safe to use Firefox ESR versions older than 115.23 after MFSA2025-30?

  No, it is not safe to use Firefox ESR versions older than 115.23, as they contain unresolved vulnerabilities that could be exploited.