New packages for Mozilla Thunderbird and Firefox are available to fix security issues on Slackware 15.0 and -current. The updates contain security fixes and improvements, with details available through links provided by the Slackware Linux Security Team. Users can download the updated packages from the Slackware FTP server or other mirror sites listed in the "Get Slack" section of the Slackware website. To upgrade the package, users should run the command upgradepkg as root on the downloaded package file.

mozilla-thunderbird (SSA:2025-287-02)
mozilla-firefox (SSA:2025-287-01)

mozilla-thunderbird (SSA:2025-287-02)

mozilla-thunderbird (SSA:2025-287-02)

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-140.4.0esr-i686-1_slack15.0.txz: Upgraded.
This release contains security fixes and improvements.
For more information, see:
https://www.mozilla.org/en-US/thunderbird/140.4.0esr/releasenotes/
https://www.mozilla.org/en-US/security/advisories/mfsa2025-85/
https://www.cve.org/CVERecord?id=CVE-2025-11708
https://www.cve.org/CVERecord?id=CVE-2025-11709
https://www.cve.org/CVERecord?id=CVE-2025-11710
https://www.cve.org/CVERecord?id=CVE-2025-11711
https://www.cve.org/CVERecord?id=CVE-2025-11712
https://www.cve.org/CVERecord?id=CVE-2025-11713
https://www.cve.org/CVERecord?id=CVE-2025-11714
https://www.cve.org/CVERecord?id=CVE-2025-11715
(* 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-140.4.0esr-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-140.4.0esr-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/xap/mozilla-thunderbird-140.4.0esr-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/xap/mozilla-thunderbird-140.4.0esr-x86_64-1.txz

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

Slackware 15.0 package:
e033c9dbb85388937c20efb8af7a97b4 mozilla-thunderbird-140.4.0esr-i686-1_slack15.0.txz

Slackware x86_64 15.0 package:
fa069eb85204e70caeefcd6c92dd0b80 mozilla-thunderbird-140.4.0esr-x86_64-1_slack15.0.txz

Slackware -current package:
fe463f70dd6ba1ef0db694faf903b61f xap/mozilla-thunderbird-140.4.0esr-i686-1.txz

Slackware x86_64 -current package:
18a57f69556823e70e269fc6292f3e4d xap/mozilla-thunderbird-140.4.0esr-x86_64-1.txz

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

Upgrade the package as root:
# upgradepkg mozilla-thunderbird-140.4.0esr-i686-1_slack15.0.txz

+-----+

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

mozilla-firefox (SSA:2025-287-01)

mozilla-firefox (SSA:2025-287-01)

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-140.4.0esr-i686-1_slack15.0.txz: Upgraded.
This update contains security fixes and improvements.
For more information, see:
https://www.mozilla.org/en-US/firefox/140.4.0/releasenotes/
https://www.mozilla.org/security/advisories/mfsa2025-83
https://www.cve.org/CVERecord?id=CVE-2025-11708
https://www.cve.org/CVERecord?id=CVE-2025-11709
https://www.cve.org/CVERecord?id=CVE-2025-11710
https://www.cve.org/CVERecord?id=CVE-2025-11711
https://www.cve.org/CVERecord?id=CVE-2025-11712
https://www.cve.org/CVERecord?id=CVE-2025-11713
https://www.cve.org/CVERecord?id=CVE-2025-11714
https://www.cve.org/CVERecord?id=CVE-2025-11715
(* 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-140.4.0esr-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-140.4.0esr-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/xap/mozilla-firefox-140.4.0esr-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/xap/mozilla-firefox-140.4.0esr-x86_64-1.txz

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

Slackware 15.0 package:
cb9e603ae99d7cd2f8c7ea9b0be44d5d mozilla-firefox-140.4.0esr-i686-1_slack15.0.txz

Slackware x86_64 15.0 package:
0c7815ad5b92736ac3b3bdef2f9807e6 mozilla-firefox-140.4.0esr-x86_64-1_slack15.0.txz

Slackware -current package:
26f037cb729db871b6a26bfaf24dc383 xap/mozilla-firefox-140.4.0esr-i686-1.txz

Slackware x86_64 -current package:
ddf53d3fba38e631fb12abf0fdf3a1e6 xap/mozilla-firefox-140.4.0esr-x86_64-1.txz

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

Upgrade the package as root:
# upgradepkg mozilla-firefox-140.4.0esr-i686-1_slack15.0.txz

+-----+

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