Version 121.0.1 - first offered to Release channel users on January 9, 2024
 
Just the few fixes listed below, no security updates
 
Fixed unexpected line wrapping in some CJK contexts caused by changes in ideographic space handling. (Bug 1870973)
 
Fixed a hang when loading sites containing column-based layouts under some circumstances. (Bug 1867784)
 
Fixed missing rounded corners for videos playing over another video. (Bug 1869994)
 
Fixed Firefox not closing properly and other applications being unable to use a USB security key after being previously used during a Firefox session. (Bug 1863135)

Thanks.

Version 122.0 - first offered to Release channel users on January 23, 2024
 
Several New items

Various security fixes.  6 rated High, there are many more are rated moderate
 
No issues to report after update on several W10 Rigs

Thanks for the heads-up.

Version 122.0.1 - first offered to Release channel users on February 6, 2024
 
very minor tweaks/ fixes
 
No security updates
 
(excerpt from link below)
 

Fixed the Library and Sidebar context menus only displaying Multi-Account Containers icons in the "Open in New Container Tab" menu. (Bug 1876518)

Fixed an issue when clicking the Dismiss button in notification pop-ups on Windows causing a webpage in a new tab. (Bug 1848801)

Fixed the yaru-remix system theme not applying correctly on Linux. (Bug 1877002)

Fixed adding an extra new line to a rule in the Developer Tools' Inspector when copying it to the clipboard. (Bug 1876220)

Rolled back a keyboard behavior change made to the Developer Tools' Rules view when validating a property name or input with the Enter key.
This moves the focus to the next input, as was the behavior in Firefox 121. (Bug 1877457)

Got it, thanks.

Version 123.0 - first offered to Release channel users on February 20, 2024
 
Several updates

Various security fixes.  5 rated High, there are 6 more, that are rated moderate
 
No issues to report after update on several W10 Rigs

Version 123.0.1 - first offered to Release channel users on March 5, 2024
 
a few fixes (copy below) 
No security updates
 
(excerpt)

Fixed the Firefox Translation language indicator in the address bar displaying a colored square icon instead of the language code icon. (Bug 1879415)

Fixed incorrect rendering of Canvas2D conic gradients colors on Windows. (Bug 1851963)

Fixed a regression with the onChange event not firing when clearing the value of a textarea HTML field. (Bug 1881457)

Fixed availability of system-level dictionaries for Linux users with Firefox installed as a Flatpak package. (Bug 1881830)

Fixed a regression in the JavaScript JIT engine incorrectly inlining strings in some cases. (Bug 1882386)

Fixed low contrast of text when selecting rows in the Developer tools' Storage panel. (Bug 1877090)

Thanks Cool.