Hello everyone. Better late than never!
During the month of December 2019 there were updates from Adobe, Apple, Google, and Mozilla. You should update Firefox and Chrome as soon as possible as they both have numerous vulnerabilities.
As almost always, Adobe Acrobat/Reader has critical vulnerabilities and it should be updated as soon as possible. Both iCloud and iTunes should also be updated without delay.
I just checked my Thunderbird email program and I did not have the most updated version. Here is what you should be looking for:
ADOBE ACROBAT/READER (latest version 2019.021.20058 here).
iCLOUD for WINDOWS (latest version 7.16 is here)
iTUNES for WINDOWS (latest version 12.10.3.1 is here)
GOOGLE CHROME (latest version 79.0.3945.88 is here)
MOZILLA FIREFOX (latest version 71.0 here)
MOZILLA THUNDERBIRD (latest version 68.3.1 here)
Happy 2020 everyone and best wishes,
Randy The Tech Professor