Here are the details from the Slackware 15.0 ChangeLog: patches/packages/mozilla-firefox-128.11.0esr-i686-1_slack15.0.txz: Upgraded. This update contains security fixes and improvements. For more information, see: https://www.firefox.com/en-US/firefox/128.11.0/releasenotes/?redirect_source=mozilla-org https://www.mozilla.org/en-US/security/advisories/mfsa2025-44/ https://www.mozilla.org/en-US/security/advisories/mfsa2025-44/#MFSA-TMP-2025-0001 https://www.cve.org/CVERecord?id=CVE-2025-5263 https://www.cve.org/CVERecord?id=CVE-2025-5264 https://www.cve.org/CVERecord?id=CVE-2025-5265 https://www.cve.org/CVERecord?id=CVE-2025-5266 https://www.cve.org/CVERecord?id=CVE-2025-5267 https://www.cve.org/CVERecord?id=CVE-2025-5268 https://www.cve.org/CVERecord?id=CVE-2025-5269 (* Security fix *)
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://www.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-128.11.0esr-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-128.11.0esr-x86_64-1_slack15.0.txz
Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/xap/mozilla-firefox-128.11.0esr-i686-1.txz
Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/xap/mozilla-firefox-128.11.0esr-x86_64-1.txz
Slackware 15.0 package:
6406515087d49b5308b933f304f311cd mozilla-firefox-128.11.0esr-i686-1_slack15.0.txz
Slackware x86_64 15.0 package:
d12a1e6f2f94261a610a6f179f8ea100 mozilla-firefox-128.11.0esr-x86_64-1_slack15.0.txz
Slackware -current package:
dadba67defd6a35768c814b3c86a6716 xap/mozilla-firefox-128.11.0esr-i686-1.txz
Slackware x86_64 -current package:
58244de61a87ee82bd9814d5d1eb481e xap/mozilla-firefox-128.11.0esr-x86_64-1.txz
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Installation instructions: Upgrade the package as root: # upgradepkg mozilla-firefox-128.11.0esr-i686-1_slack15.0.txz