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Slackware 15.0 Mozilla-Firefox Critical Security Update 2026-028-01

slackware
Calendar Grey January 27, 2026
Dist Slackware Esm H88
New mozilla-thunderbird packages for Slackware address important security issues with upgrades and fixes available.
New mozilla-thunderbird 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-thunderbird-140.7.1esr-i686-1_slack15.0.txz: Upgraded. This release contains security fixes and improvements. For more information, see: https://www.thunderbird.net/en-US/thunderbird/140.7.1esr/releasenotes/ (* Security fix *)

Topics%20covered

Topics Covered

security advisory security issue important slackware upgrade mozilla thunderbird

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-thunderbird-140.7.1esr-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-140.7.1esr-x86_64-1_slack15.0.txz
Updated package for Slackware -current: ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/xap/mozilla-thunderbird-140.7.1esr-i686-1.txz
Updated package for Slackware x86_64 -current: ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/xap/mozilla-thunderbird-140.7.1esr-x86_64-1.txz

MD5 Signatures

Slackware 15.0 package: e7f89783519ea88ea2e9aa02bd48c517 mozilla-thunderbird-140.7.1esr-i686-1_slack15.0.txz
Slackware x86_64 15.0 package: 4bd0cb8d89639d1185755c6e57a6f71b mozilla-thunderbird-140.7.1esr-x86_64-1_slack15.0.txz
Slackware -current package: e7f89783519ea88ea2e9aa02bd48c517 xap/mozilla-thunderbird-140.7.1esr-i686-1.txz
Slackware x86_64 -current package: 80e522deed9703b42b7588b89acaedc7 xap/mozilla-thunderbird-140.7.1esr-x86_64-1.txz

Severity
important
Lowest
Low
Medium
High
Critical

Topics%20covered

Topics Covered

security advisory security issue important slackware upgrade mozilla thunderbird

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Installation Instructions

Installation instructions: Upgrade the package as root: # upgradepkg mozilla-thunderbird-140.7.1esr-i686-1_slack15.0.txz