As a part of the front-end technical modernization the old xul box model is being replaced with modern flexbox all around the UI.
Previously, just about everything used display: -moz-box but in Firefox 112 (at least in Nightly, but I would be surprised if this won't propagate to release 112 as well) the default display model will be changed to modern display: flex instead.
What this means first-hand is that all legacy box model -related properties will not do anything anymore so things like -moz-box-ordinal-group, -moz-box-orient, -moz-box-direction, -moz-box-align, -moz-box-pack or -moz-box-flex won't have any effect.
Describe the bug
Expected behavior
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Screenshots
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OS
Linux
OS - Others
No response
Firefox Version
v112
Distribution
Theme
Theme - More Info
No response
user.js
setupuser.js
setup```javascript // Your settings ```
Additional context