New mozilla-thunderbird packages are available for Slackware 14.1, 14.2, and -current to fix security issues

Here are the details from the Slackware 14.2 ChangeLog:
+--------------------------+
patches/packages/mozilla-thunderbird-45.4.0-i586-1_slack14.2.txz: Upgraded.
This release contains security fixes and improvements.
For more information, see:
http://www.mozilla.org/security/known-vulnerabilities/thunderbird.html
(* 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 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/mozilla-thunderbird-45.4.0-i486-1_slack14.1.txz

Updated package for Slackware x86_64 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/mozilla-thunderbird-45.4.0-x86_64-1_slack14.1.txz

Updated package for Slackware 14.2:
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/mozilla-thunderbird-45.4.0-i586-1_slack14.2.txz

Updated package for Slackware x86_64 14.2:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/mozilla-thunderbird-45.4.0-x86_64-1_slack14.2.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/xap/mozilla-thunderbird-45.4.0-i586-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/xap/mozilla-thunderbird-45.4.0-x86_64-1.txz


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

Slackware 14.1 package:
bbc7a109aed0f6258f563f152f3d95b3 mozilla-thunderbird-45.4.0-i486-1_slack14.1.txz

Slackware x86_64 14.1 package:
5aaf769ae54a1933f84833ad73808bb2 mozilla-thunderbird-45.4.0-x86_64-1_slack14.1.txz

Slackware 14.2 package:
72106c3f885a6523422f22263c265a14 mozilla-thunderbird-45.4.0-i586-1_slack14.2.txz

Slackware x86_64 14.2 package:
241190d62a7eb1d87eb517cc176f463b mozilla-thunderbird-45.4.0-x86_64-1_slack14.2.txz

Slackware -current package:
f45be7939e94e14dc46f8571616580dd xap/mozilla-thunderbird-45.4.0-i586-1.txz

Slackware x86_64 -current package:
458c7b0cf5519cb3284d4c22f07924e6 xap/mozilla-thunderbird-45.4.0-x86_64-1.txz


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

Upgrade the package as root:
# upgradepkg mozilla-thunderbird-45.4.0-i486-1_slack14.1.txz

  Mozilla-thunderbird (SSA:2016-275-01) Update for Slackware