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From: Slackware Security Team <security@slackware.com>
To: slackware-security@slackware.com
Subject: [slackware-security] mozilla-firefox (SSA:2026-168-03)
Date: Wed, 17 Jun 2026 14:43:54 -0700 (PDT)
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[slackware-security]  mozilla-firefox (SSA:2026-168-03)

New mozilla-firefox packages are available for Slackware 15.0 and -current to
fix security issues.


Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/mozilla-firefox-140.12.0esr-i686-1_slack15.0.txz:  Upgraded.
  This update contains security fixes and improvements.
  For more information, see:
    https://www.mozilla.org/en-US/firefox/140.12.0/releasenotes/
    https://www.mozilla.org/security/advisories/mfsa2026-58
    https://www.cve.org/CVERecord?id=CVE-2026-12289
    https://www.cve.org/CVERecord?id=CVE-2026-12290
    https://www.cve.org/CVERecord?id=CVE-2026-12291
    https://www.cve.org/CVERecord?id=CVE-2026-12292
    https://www.cve.org/CVERecord?id=CVE-2026-12294
    https://www.cve.org/CVERecord?id=CVE-2026-12295
    https://www.cve.org/CVERecord?id=CVE-2026-12298
    https://www.cve.org/CVERecord?id=CVE-2026-12296
    https://www.cve.org/CVERecord?id=CVE-2026-12297
    https://www.cve.org/CVERecord?id=CVE-2026-12299
    https://www.cve.org/CVERecord?id=CVE-2026-12329
    https://www.cve.org/CVERecord?id=CVE-2026-12302
    https://www.cve.org/CVERecord?id=CVE-2026-12304
    https://www.cve.org/CVERecord?id=CVE-2026-12305
    https://www.cve.org/CVERecord?id=CVE-2026-12306
    https://www.cve.org/CVERecord?id=CVE-2026-12307
    https://www.cve.org/CVERecord?id=CVE-2026-12308
    https://www.cve.org/CVERecord?id=CVE-2026-12309
    https://www.cve.org/CVERecord?id=CVE-2026-12310
    https://www.cve.org/CVERecord?id=CVE-2026-12311
    https://www.cve.org/CVERecord?id=CVE-2026-12312
    https://www.cve.org/CVERecord?id=CVE-2026-12313
    https://www.cve.org/CVERecord?id=CVE-2026-12314
    https://www.cve.org/CVERecord?id=CVE-2026-12315
    https://www.cve.org/CVERecord?id=CVE-2026-12330
    https://www.cve.org/CVERecord?id=CVE-2026-12324
    https://www.cve.org/CVERecord?id=CVE-2026-12325
    https://www.cve.org/CVERecord?id=CVE-2026-12327
    https://www.cve.org/CVERecord?id=CVE-2026-12328
  (* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project!  :-)

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/mozilla-firefox-140.12.0esr-i686-1_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/mozilla-firefox-140.12.0esr-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/xap/mozilla-firefox-140.12.0esr-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/xap/mozilla-firefox-140.12.0esr-x86_64-1.txz


MD5 signatures:
+-------------+

Slackware 15.0 package:
9a7c2ffc7fc6598e51c0a8400d5a5a30  mozilla-firefox-140.12.0esr-i686-1_slack15.0.txz

Slackware x86_64 15.0 package:
1cb4d49e48dbde82e77cd1da31192592  mozilla-firefox-140.12.0esr-x86_64-1_slack15.0.txz

Slackware -current package:
558c5c9a66ecc55ebdda6fe76cd67630  xap/mozilla-firefox-140.12.0esr-i686-1.txz

Slackware x86_64 -current package:
faa12d5490361f40a0d44aedd9bf199a  xap/mozilla-firefox-140.12.0esr-x86_64-1.txz


Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg mozilla-firefox-140.12.0esr-i686-1_slack15.0.txz


+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com

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