Home / mailings [SECURITY] [DSA 6003-2] firefox-esr update
Posted on 28 September 2025
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6003-2 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
September 28, 2025 https://www.debian.org/security/faq
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Package : firefox-esr
Firefox 140.3.1 has been released, which fixes connection errors with
some sites; if HTTP/3 connections failed, the fallback is now handled
more gracefully.
For the oldstable distribution (bookworm), these problems have been fixed
in version 140.3.1esr-1~deb12u1.
For the stable distribution (trixie), these problems have been fixed in
version 140.3.1esr-1~deb13u1.
We recommend that you upgrade your firefox-esr packages.
For the detailed security status of firefox-esr please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/firefox-esr
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org