diff --git a/devtools/shared/css/generated/generate-properties-db.js b/devtools/shared/css/generated/generate-properties-db.js
index c398b847a4bb..c47b9b68a468 100644
--- a/devtools/shared/css/generated/generate-properties-db.js
+++ b/devtools/shared/css/generated/generate-properties-db.js
@@ -24,7 +24,6 @@ dump("DEVTOOLS_CSS_DB_DELIMITER");
 dump(
   JSON.stringify({
     cssProperties: cssProperties(),
-    preferences: preferences(),
     pseudoElements: pseudoElements(),
   })
 );
@@ -52,18 +51,6 @@ function cssProperties() {
   return properties;
 }
 
-/**
- * A list of preferences of CSS properties.
- */
-function preferences() {
-  const prefs = InspectorUtils.getCSSPropertyPrefs();
-  const result = [];
-  for (const { name, pref } of prefs) {
-    result.push([name, pref]);
-  }
-  return result;
-}
-
 /**
  * The list of all CSS Pseudo Elements.
  */
diff --git a/devtools/shared/css/generated/mach_commands.py b/devtools/shared/css/generated/mach_commands.py
index 7a41ea49b25f..b9714b3aaa8e 100644
--- a/devtools/shared/css/generated/mach_commands.py
+++ b/devtools/shared/css/generated/mach_commands.py
@@ -51,7 +51,6 @@ def generate_css_db(command_context):
     output_template(
         command_context,
         {
-            "preferences": stringify(db["preferences"]),
             "cssProperties": stringify(db["cssProperties"]),
             "pseudoElements": stringify(db["pseudoElements"]),
         },
diff --git a/devtools/shared/css/generated/properties-db.js b/devtools/shared/css/generated/properties-db.js
index d6c70dacc781..b826212d90cc 100644
--- a/devtools/shared/css/generated/properties-db.js
+++ b/devtools/shared/css/generated/properties-db.js
@@ -11982,346 +11982,3 @@ exports.PSEUDO_ELEMENTS = [
   "::-moz-color-swatch",
   "::file-selector-button"
 ];
-
-/**
- * A list of the preferences keys for whether a CSS property is enabled or not. This is
- * exposed for testing purposes.
- */
-exports.PREFERENCES = [
-  [
-    "container-type",
-    "layout.css.container-queries.enabled"
-  ],
-  [
-    "content-visibility",
-    "layout.css.content-visibility.enabled"
-  ],
-  [
-    "font-optical-sizing",
-    "layout.css.font-variations.enabled"
-  ],
-  [
-    "font-variant-emoji",
-    "layout.css.font-variant-emoji.enabled"
-  ],
-  [
-    "initial-letter",
-    "layout.css.initial-letter.enabled"
-  ],
-  [
-    "masonry-auto-flow",
-    "layout.css.grid-template-masonry-value.enabled"
-  ],
-  [
-    "math-depth",
-    "layout.css.math-depth.enabled"
-  ],
-  [
-    "math-style",
-    "layout.css.math-style.enabled"
-  ],
-  [
-    "-moz-control-character-visibility",
-    "layout.css.moz-control-character-visibility.enabled"
-  ],
-  [
-    "-moz-osx-font-smoothing",
-    "layout.css.osx-font-smoothing.enabled"
-  ],
-  [
-    "offset-rotate",
-    "layout.css.motion-path.enabled"
-  ],
-  [
-    "overflow-anchor",
-    "layout.css.scroll-anchoring.enabled"
-  ],
-  [
-    "page-orientation",
-    "layout.css.page-orientation.enabled"
-  ],
-  [
-    "scrollbar-gutter",
-    "layout.css.scrollbar-gutter.enabled"
-  ],
-  [
-    "overflow-clip-box-block",
-    "layout.css.overflow-clip-box.enabled"
-  ],
-  [
-    "overflow-clip-box-inline",
-    "layout.css.overflow-clip-box.enabled"
-  ],
-  [
-    "overflow-block",
-    "layout.css.overflow-logical.enabled"
-  ],
-  [
-    "overflow-inline",
-    "layout.css.overflow-logical.enabled"
-  ],
-  [
-    "overscroll-behavior-block",
-    "layout.css.overscroll-behavior.enabled"
-  ],
-  [
-    "overscroll-behavior-inline",
-    "layout.css.overscroll-behavior.enabled"
-  ],
-  [
-    "overscroll-behavior-x",
-    "layout.css.overscroll-behavior.enabled"
-  ],
-  [
-    "overscroll-behavior-y",
-    "layout.css.overscroll-behavior.enabled"
-  ],
-  [
-    "accent-color",
-    "layout.css.accent-color.enabled"
-  ],
-  [
-    "align-tracks",
-    "layout.css.grid-template-masonry-value.enabled"
-  ],
-  [
-    "animation-composition",
-    "layout.css.animation-composition.enabled"
-  ],
-  [
-    "animation-timeline",
-    "layout.css.scroll-driven-animations.enabled"
-  ],
-  [
-    "backdrop-filter",
-    "layout.css.backdrop-filter.enabled"
-  ],
-  [
-    "color-scheme",
-    "layout.css.color-scheme.enabled"
-  ],
-  [
-    "container-name",
-    "layout.css.container-queries.enabled"
-  ],
-  [
-    "d",
-    "layout.css.d-property.enabled"
-  ],
-  [
-    "font-palette",
-    "layout.css.font-palette.enabled"
-  ],
-  [
-    "font-variation-settings",
-    "layout.css.font-variations.enabled"
-  ],
-  [
-    "hyphenate-character",
-    "layout.css.hyphenate-character.enabled"
-  ],
-  [
-    "justify-tracks",
-    "layout.css.grid-template-masonry-value.enabled"
-  ],
-  [
-    "-moz-context-properties",
-    "svg.context-properties.content.enabled"
-  ],
-  [
-    "offset-anchor",
-    "layout.css.motion-path.enabled"
-  ],
-  [
-    "offset-path",
-    "layout.css.motion-path.enabled"
-  ],
-  [
-    "page",
-    "layout.css.named-pages.enabled"
-  ],
-  [
-    "rotate",
-    "layout.css.individual-transform.enabled"
-  ],
-  [
-    "scale",
-    "layout.css.individual-transform.enabled"
-  ],
-  [
-    "scroll-timeline-axis",
-    "layout.css.scroll-driven-animations.enabled"
-  ],
-  [
-    "scroll-timeline-name",
-    "layout.css.scroll-driven-animations.enabled"
-  ],
-  [
-    "size",
-    "layout.css.page-size.enabled"
-  ],
-  [
-    "translate",
-    "layout.css.individual-transform.enabled"
-  ],
-  [
-    "view-timeline-axis",
-    "layout.css.scroll-driven-animations.enabled"
-  ],
-  [
-    "view-timeline-inset",
-    "layout.css.scroll-driven-animations.enabled"
-  ],
-  [
-    "view-timeline-name",
-    "layout.css.scroll-driven-animations.enabled"
-  ],
-  [
-    "contain-intrinsic-block-size",
-    "layout.css.contain-intrinsic-size.enabled"
-  ],
-  [
-    "contain-intrinsic-height",
-    "layout.css.contain-intrinsic-size.enabled"
-  ],
-  [
-    "contain-intrinsic-inline-size",
-    "layout.css.contain-intrinsic-size.enabled"
-  ],
-  [
-    "contain-intrinsic-width",
-    "layout.css.contain-intrinsic-size.enabled"
-  ],
-  [
-    "offset-distance",
-    "layout.css.motion-path.enabled"
-  ],
-  [
-    "overflow-clip-box",
-    "layout.css.overflow-clip-box.enabled"
-  ],
-  [
-    "overscroll-behavior",
-    "layout.css.overscroll-behavior.enabled"
-  ],
-  [
-    "container",
-    "layout.css.container-queries.enabled"
-  ],
-  [
-    "offset",
-    "layout.css.motion-path.enabled"
-  ],
-  [
-    "zoom",
-    "layout.css.zoom-transform-hack.enabled"
-  ],
-  [
-    "contain-intrinsic-size",
-    "layout.css.contain-intrinsic-size.enabled"
-  ],
-  [
-    "scroll-timeline",
-    "layout.css.scroll-driven-animations.enabled"
-  ],
-  [
-    "view-timeline",
-    "layout.css.scroll-driven-animations.enabled"
-  ],
-  [
-    "-moz-transform",
-    "layout.css.prefixes.transforms"
-  ],
-  [
-    "-moz-perspective",
-    "layout.css.prefixes.transforms"
-  ],
-  [
-    "-moz-perspective-origin",
-    "layout.css.prefixes.transforms"
-  ],
-  [
-    "-moz-backface-visibility",
-    "layout.css.prefixes.transforms"
-  ],
-  [
-    "-moz-transform-style",
-    "layout.css.prefixes.transforms"
-  ],
-  [
-    "-moz-transform-origin",
-    "layout.css.prefixes.transforms"
-  ],
-  [
-    "-moz-font-feature-settings",
-    "layout.css.prefixes.font-features"
-  ],
-  [
-    "-moz-font-language-override",
-    "layout.css.prefixes.font-features"
-  ],
-  [
-    "-moz-box-sizing",
-    "layout.css.prefixes.box-sizing"
-  ],
-  [
-    "-moz-transition-duration",
-    "layout.css.prefixes.transitions"
-  ],
-  [
-    "-moz-transition-timing-function",
-    "layout.css.prefixes.transitions"
-  ],
-  [
-    "-moz-transition-property",
-    "layout.css.prefixes.transitions"
-  ],
-  [
-    "-moz-transition-delay",
-    "layout.css.prefixes.transitions"
-  ],
-  [
-    "-moz-animation-name",
-    "layout.css.prefixes.animations"
-  ],
-  [
-    "-moz-animation-duration",
-    "layout.css.prefixes.animations"
-  ],
-  [
-    "-moz-animation-timing-function",
-    "layout.css.prefixes.animations"
-  ],
-  [
-    "-moz-animation-iteration-count",
-    "layout.css.prefixes.animations"
-  ],
-  [
-    "-moz-animation-direction",
-    "layout.css.prefixes.animations"
-  ],
-  [
-    "-moz-animation-play-state",
-    "layout.css.prefixes.animations"
-  ],
-  [
-    "-moz-animation-fill-mode",
-    "layout.css.prefixes.animations"
-  ],
-  [
-    "-moz-animation-delay",
-    "layout.css.prefixes.animations"
-  ],
-  [
-    "-moz-border-image",
-    "layout.css.prefixes.border-image"
-  ],
-  [
-    "-moz-transition",
-    "layout.css.prefixes.transitions"
-  ],
-  [
-    "-moz-animation",
-    "layout.css.prefixes.animations"
-  ]
-];
diff --git a/devtools/shared/css/generated/properties-db.js.in b/devtools/shared/css/generated/properties-db.js.in
index 3b33faee5e20..f6df0a13a5f2 100644
--- a/devtools/shared/css/generated/properties-db.js.in
+++ b/devtools/shared/css/generated/properties-db.js.in
@@ -19,9 +19,3 @@ exports.CSS_PROPERTIES = ${cssProperties};
  * A list of the pseudo elements.
  */
 exports.PSEUDO_ELEMENTS = ${pseudoElements};
-
-/**
- * A list of the preferences keys for whether a CSS property is enabled or not. This is
- * exposed for testing purposes.
- */
-exports.PREFERENCES = ${preferences};
diff --git a/devtools/shared/tests/xpcshell/test_css-properties-db.js b/devtools/shared/tests/xpcshell/test_css-properties-db.js
index ee745d4bd397..78ed8fd70b68 100644
--- a/devtools/shared/tests/xpcshell/test_css-properties-db.js
+++ b/devtools/shared/tests/xpcshell/test_css-properties-db.js
@@ -22,8 +22,8 @@
 const {
   PSEUDO_ELEMENTS,
   CSS_PROPERTIES,
-  PREFERENCES,
 } = require("resource://devtools/shared/css/generated/properties-db.js");
+const PREFERENCES = InspectorUtils.getCSSPropertyPrefs();
 const {
   generateCssProperties,
 } = require("resource://devtools/server/actors/css-properties.js");
@@ -47,14 +47,6 @@ function run_test() {
       propertiesErrorMessage
   );
 
-  const prefs = InspectorUtils.getCSSPropertyPrefs();
-  deepEqual(
-    PREFERENCES,
-    prefs.map(({ name, pref }) => [name, pref]),
-    "The preferences match on the client and platform. " +
-      propertiesErrorMessage
-  );
-
   /**
    * Check that the platform and client match for the details on their CSS properties.
    * Enumerate each property to aid in debugging. Sometimes these properties don't
@@ -177,12 +169,12 @@ function getKeyMismatches(a, b) {
  * @return {Boolean|undefined}
  */
 function getPreference(propertyName) {
-  const preference = PREFERENCES.find(([prefPropertyName, preferenceKey]) => {
-    return prefPropertyName === propertyName && !!preferenceKey;
+  const preference = PREFERENCES.find(({ name, pref }) => {
+    return name === propertyName && !!pref;
   });
 
   if (preference) {
-    return Preferences.get(preference[1]);
+    return Preferences.get(preference.pref);
   }
   return undefined;
 }