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Slackware: mozilla-firefox Security Issues Fix SSA:2026-014-02

slackware
Calendar Grey January 14, 2026
Dist Slackware Esm H88
Mozilla-Firefox security updates released for Slackware 15.0 to address critical issues and enhance performance.
New mozilla-firefox packages are available for Slackware 15.0 and -current to fix security issues.

Summary

Here are the details from the Slackware 15.0 ChangeLog: patches/packages/mozilla-firefox-140.7.0esr-i686-1_slack15.0.txz: Upgraded. This update contains security fixes and improvements. For more information, see: https://www.firefox.com/en-US/firefox/140.7.0/releasenotes/?redirect_source=mozilla-org https://www.mozilla.org/security/advisories/mfsa2026-03/ https://www.cve.org/CVERecord?id=CVE-2026-0877 https://www.cve.org/CVERecord?id=CVE-2026-0878 https://www.cve.org/CVERecord?id=CVE-2026-0879 https://www.cve.org/CVERecord?id=CVE-2026-0880 https://www.cve.org/CVERecord?id=CVE-2026-0882 https://www.cve.org/CVERecord?id=CVE-2025-14327 https://www.cve.org/CVERecord?id=CVE-2026-0883 https://www.cve.org/CVERecord?id=CVE-2026-0884 https://www.cve.org/CVERecord?id=CVE-2026-0885 https://www.cve.org/CVERecord?id=CVE-2026-0886 https://www.cve.org/CVERecord?id=CVE-2026-0887 https://www.cve.org/CVERecord?id=CVE-2026-0890

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory security issue update important slackware mozilla firefox

Where Find 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://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-140.7.0esr-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-140.7.0esr-x86_64-1_slack15.0.txz
Updated package for Slackware -current: ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/xap/mozilla-firefox-140.7.0esr-i686-1.txz
Updated package for Slackware x86_64 -current: ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/xap/mozilla-firefox-140.7.0esr-x86_64-1.txz

MD5 Signatures

Slackware 15.0 package: bebac90dca6ba78360c9255f109ed01b mozilla-firefox-140.7.0esr-i686-1_slack15.0.txz
Slackware x86_64 15.0 package: 7d403423630d2474d08dab959b379c69 mozilla-firefox-140.7.0esr-x86_64-1_slack15.0.txz
Slackware -current package: f104a3d0232fe3a6fe0241534b6af840 xap/mozilla-firefox-140.7.0esr-i686-1.txz
Slackware x86_64 -current package: ad445417b8d7fb408f4b9badc8b39044 xap/mozilla-firefox-140.7.0esr-x86_64-1.txz

Severity
important
Lowest
Low
Medium
High
Critical

Topics%20covered

Topics Covered

security advisory security issue update important slackware mozilla firefox

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Installation Instructions

Installation instructions: Upgrade the package as root: # upgradepkg mozilla-firefox-140.7.0esr-i686-1_slack15.0.txz

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