Slackware 1239 Published by

New security updates for Mozilla Firefox and Thunderbird are now available to protect Slackware Linux systems from known vulnerabilities. The update brings both applications to version 140.9.0esr while supporting the standard 15.0 release and the ongoing current development branch.

mozilla-firefox (SSA:2026-083-01)
mozilla-thunderbird (SSA:2026-083-02)




mozilla-firefox (SSA:2026-083-01)


mozilla-firefox (SSA:2026-083-01)

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-140.9.0esr-i686-1_slack15.0.txz: Upgraded.
This update contains security fixes and improvements.
For more information, see:
https://www.mozilla.org/en-US/firefox/140.9.0/releasenotes/
https://www.mozilla.org/security/advisories/mfsa2026-22/
https://www.cve.org/CVERecord?id=CVE-2026-4684
https://www.cve.org/CVERecord?id=CVE-2026-4685
https://www.cve.org/CVERecord?id=CVE-2026-4686
https://www.cve.org/CVERecord?id=CVE-2026-4687
https://www.cve.org/CVERecord?id=CVE-2026-4688
https://www.cve.org/CVERecord?id=CVE-2026-4689
https://www.cve.org/CVERecord?id=CVE-2026-4690
https://www.cve.org/CVERecord?id=CVE-2026-4691
https://www.cve.org/CVERecord?id=CVE-2026-4692
https://www.cve.org/CVERecord?id=CVE-2026-4693
https://www.cve.org/CVERecord?id=CVE-2026-4694
https://www.cve.org/CVERecord?id=CVE-2026-4695
https://www.cve.org/CVERecord?id=CVE-2026-4696
https://www.cve.org/CVERecord?id=CVE-2026-4697
https://www.cve.org/CVERecord?id=CVE-2026-4698
https://www.cve.org/CVERecord?id=CVE-2026-4699
https://www.cve.org/CVERecord?id=CVE-2026-4700
https://www.cve.org/CVERecord?id=CVE-2026-4701
https://www.cve.org/CVERecord?id=CVE-2026-4702
https://www.cve.org/CVERecord?id=CVE-2026-4704
https://www.cve.org/CVERecord?id=CVE-2026-4705
https://www.cve.org/CVERecord?id=CVE-2026-4706
https://www.cve.org/CVERecord?id=CVE-2026-4707
https://www.cve.org/CVERecord?id=CVE-2026-4708
https://www.cve.org/CVERecord?id=CVE-2026-4709
https://www.cve.org/CVERecord?id=CVE-2026-4710
https://www.cve.org/CVERecord?id=CVE-2026-4711
https://www.cve.org/CVERecord?id=CVE-2026-4712
https://www.cve.org/CVERecord?id=CVE-2026-4713
https://www.cve.org/CVERecord?id=CVE-2026-4714
https://www.cve.org/CVERecord?id=CVE-2026-4715
https://www.cve.org/CVERecord?id=CVE-2026-4716
https://www.cve.org/CVERecord?id=CVE-2026-4717
https://www.cve.org/CVERecord?id=CVE-2025-59375
https://www.cve.org/CVERecord?id=CVE-2026-4718
https://www.cve.org/CVERecord?id=CVE-2026-4719
https://www.cve.org/CVERecord?id=CVE-2026-4720
https://www.cve.org/CVERecord?id=CVE-2026-4721
(* 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-140.9.0esr-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-140.9.0esr-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/xap/mozilla-firefox-140.9.0esr-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/xap/mozilla-firefox-140.9.0esr-x86_64-1.txz

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

Slackware 15.0 package:
905f7dce76ed32699ffe8db1a59e3a28 mozilla-firefox-140.9.0esr-i686-1_slack15.0.txz

Slackware x86_64 15.0 package:
03d4a0983639d0c1a71f85df1ba291cd mozilla-firefox-140.9.0esr-x86_64-1_slack15.0.txz

Slackware -current package:
103bb16e97949828383601420824edff xap/mozilla-firefox-140.9.0esr-i686-1.txz

Slackware x86_64 -current package:
db28ccae94dd8d24c8559d90c6c8b3c6 xap/mozilla-firefox-140.9.0esr-x86_64-1.txz

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

Upgrade the package as root:
# upgradepkg mozilla-firefox-140.9.0esr-i686-1_slack15.0.txz

+-----+

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



mozilla-thunderbird (SSA:2026-083-02)


mozilla-thunderbird (SSA:2026-083-02)

New mozilla-thunderbird 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-thunderbird-140.9.0esr-i686-1_slack15.0.txz: Upgraded.
This release contains security fixes and improvements.
For more information, see:
https://www.mozilla.org/en-US/thunderbird/140.9.0esr/releasenotes/
(* 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-thunderbird-140.9.0esr-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-thunderbird-140.9.0esr-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/xap/mozilla-thunderbird-140.9.0esr-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/xap/mozilla-thunderbird-140.9.0esr-x86_64-1.txz

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

Slackware 15.0 package:
747937a1b981fca256688eab22a462d4 mozilla-thunderbird-140.9.0esr-i686-1_slack15.0.txz

Slackware x86_64 15.0 package:
81aed95f1c326aaa88ba45bcfc3f908f mozilla-thunderbird-140.9.0esr-x86_64-1_slack15.0.txz

Slackware -current package:
9cede94fa083f0d1a122e4bcb518b142 xap/mozilla-thunderbird-140.9.0esr-i686-1.txz

Slackware x86_64 -current package:
042424ecfe4861ea7d665eb444dad1b6 xap/mozilla-thunderbird-140.9.0esr-x86_64-1.txz

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

Upgrade the package as root:
# upgradepkg mozilla-thunderbird-140.9.0esr-i686-1_slack15.0.txz

+-----+

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