diff --git a/components/style/gecko/pseudo_element.rs b/components/style/gecko/pseudo_element.rs
index defa6bec18d..501611830ff 100644
--- a/components/style/gecko/pseudo_element.rs
+++ b/components/style/gecko/pseudo_element.rs
@@ -182,13 +182,18 @@ impl PseudoElement {
     /// Property flag that properties must have to apply to this pseudo-element.
     #[inline]
     pub fn property_restriction(&self) -> Option<PropertyFlags> {
-        match *self {
-            PseudoElement::FirstLetter => Some(PropertyFlags::APPLIES_TO_FIRST_LETTER),
-            PseudoElement::FirstLine => Some(PropertyFlags::APPLIES_TO_FIRST_LINE),
-            PseudoElement::Placeholder => Some(PropertyFlags::APPLIES_TO_PLACEHOLDER),
-            PseudoElement::Cue => Some(PropertyFlags::APPLIES_TO_CUE),
-            _ => None,
-        }
+        Some(match *self {
+            PseudoElement::FirstLetter => PropertyFlags::APPLIES_TO_FIRST_LETTER,
+            PseudoElement::FirstLine => PropertyFlags::APPLIES_TO_FIRST_LINE,
+            PseudoElement::Placeholder => PropertyFlags::APPLIES_TO_PLACEHOLDER,
+            PseudoElement::Cue => PropertyFlags::APPLIES_TO_CUE,
+            PseudoElement::Marker
+                if unsafe { structs::StaticPrefs::sVarCache_layout_css_marker_restricted } =>
+            {
+                PropertyFlags::APPLIES_TO_MARKER
+            },
+            _ => return None,
+        })
     }
 
     /// Whether this pseudo-element should actually exist if it has
diff --git a/components/style/properties/longhands/counters.mako.rs b/components/style/properties/longhands/counters.mako.rs
index f8971315603..fce23f3a1ea 100644
--- a/components/style/properties/longhands/counters.mako.rs
+++ b/components/style/properties/longhands/counters.mako.rs
@@ -13,6 +13,7 @@ ${helpers.predefined_type(
     initial_specified_value="specified::Content::normal()",
     animation_value_type="discrete",
     spec="https://drafts.csswg.org/css-content/#propdef-content",
+    flags="APPLIES_TO_MARKER",
     servo_restyle_damage="rebuild_and_reflow",
 )}
 
diff --git a/components/style/properties/longhands/font.mako.rs b/components/style/properties/longhands/font.mako.rs
index 05682883804..098cb06b3a6 100644
--- a/components/style/properties/longhands/font.mako.rs
+++ b/components/style/properties/longhands/font.mako.rs
@@ -12,7 +12,7 @@ ${helpers.predefined_type(
     "FontFamily",
     initial_value="computed::FontFamily::serif()",
     animation_value_type="discrete",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     spec="https://drafts.csswg.org/css-fonts/#propdef-font-family",
     servo_restyle_damage="rebuild_and_reflow",
 )}
@@ -23,7 +23,7 @@ ${helpers.predefined_type(
     initial_value="computed::FontStyle::normal()",
     initial_specified_value="specified::FontStyle::normal()",
     animation_value_type="FontStyle",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     spec="https://drafts.csswg.org/css-fonts/#propdef-font-style",
     servo_restyle_damage="rebuild_and_reflow",
 )}
@@ -42,7 +42,7 @@ ${helpers.single_keyword_system(
     gecko_ffi_name="mFont.variantCaps",
     spec="https://drafts.csswg.org/css-fonts/#propdef-font-variant-caps",
     custom_consts=font_variant_caps_custom_consts,
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     animation_value_type="discrete",
     servo_restyle_damage="rebuild_and_reflow",
 )}
@@ -53,7 +53,7 @@ ${helpers.predefined_type(
     initial_value="computed::FontWeight::normal()",
     initial_specified_value="specified::FontWeight::normal()",
     animation_value_type="Number",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     spec="https://drafts.csswg.org/css-fonts/#propdef-font-weight",
     servo_restyle_damage="rebuild_and_reflow",
 )}
@@ -65,7 +65,7 @@ ${helpers.predefined_type(
     initial_specified_value="specified::FontSize::medium()",
     animation_value_type="NonNegativeLength",
     allow_quirks="Yes",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     spec="https://drafts.csswg.org/css-fonts/#propdef-font-size",
     servo_restyle_damage="rebuild_and_reflow",
 )}
@@ -77,7 +77,7 @@ ${helpers.predefined_type(
     initial_value="computed::FontSizeAdjust::none()",
     initial_specified_value="specified::FontSizeAdjust::none()",
     animation_value_type="ComputedValue",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     spec="https://drafts.csswg.org/css-fonts/#propdef-font-size-adjust",
 )}
 
@@ -87,7 +87,7 @@ ${helpers.predefined_type(
     products="gecko",
     initial_value="specified::FontSynthesis::get_initial_value()",
     animation_value_type="discrete",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     spec="https://drafts.csswg.org/css-fonts/#propdef-font-synthesis",
 )}
 
@@ -97,7 +97,7 @@ ${helpers.predefined_type(
     initial_value="computed::FontStretch::hundred()",
     initial_specified_value="specified::FontStretch::normal()",
     animation_value_type="Percentage",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     spec="https://drafts.csswg.org/css-fonts/#propdef-font-stretch",
     servo_restyle_damage="rebuild_and_reflow",
 )}
@@ -109,7 +109,7 @@ ${helpers.single_keyword_system(
     gecko_ffi_name="mFont.kerning",
     gecko_constant_prefix="NS_FONT_KERNING",
     spec="https://drafts.csswg.org/css-fonts/#propdef-font-kerning",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     animation_value_type="discrete",
 )}
 
@@ -120,7 +120,7 @@ ${helpers.predefined_type(
     initial_value="computed::FontVariantAlternates::get_initial_value()",
     initial_specified_value="specified::FontVariantAlternates::get_initial_specified_value()",
     animation_value_type="discrete",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     spec="https://drafts.csswg.org/css-fonts/#propdef-font-variant-alternates",
 )}
 
@@ -131,7 +131,7 @@ ${helpers.predefined_type(
     initial_value="computed::FontVariantEastAsian::empty()",
     initial_specified_value="specified::FontVariantEastAsian::empty()",
     animation_value_type="discrete",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     spec="https://drafts.csswg.org/css-fonts/#propdef-font-variant-east-asian",
 )}
 
@@ -142,7 +142,7 @@ ${helpers.predefined_type(
     initial_value="computed::FontVariantLigatures::empty()",
     initial_specified_value="specified::FontVariantLigatures::empty()",
     animation_value_type="discrete",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     spec="https://drafts.csswg.org/css-fonts/#propdef-font-variant-ligatures",
 )}
 
@@ -153,7 +153,7 @@ ${helpers.predefined_type(
     initial_value="computed::FontVariantNumeric::empty()",
     initial_specified_value="specified::FontVariantNumeric::empty()",
     animation_value_type="discrete",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     spec="https://drafts.csswg.org/css-fonts/#propdef-font-variant-numeric",
 )}
 
@@ -164,7 +164,7 @@ ${helpers.single_keyword_system(
     gecko_ffi_name="mFont.variantPosition",
     gecko_constant_prefix="NS_FONT_VARIANT_POSITION",
     spec="https://drafts.csswg.org/css-fonts/#propdef-font-variant-position",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     animation_value_type="discrete",
 )}
 
@@ -176,7 +176,7 @@ ${helpers.predefined_type(
     initial_specified_value="specified::FontFeatureSettings::normal()",
     extra_prefixes="moz:layout.css.prefixes.font-features",
     animation_value_type="discrete",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     spec="https://drafts.csswg.org/css-fonts/#propdef-font-feature-settings",
 )}
 
@@ -195,7 +195,7 @@ ${helpers.predefined_type(
     initial_value="computed::FontVariationSettings::normal()",
     initial_specified_value="specified::FontVariationSettings::normal()",
     animation_value_type="ComputedValue",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     spec="${variation_spec}",
 )}
 
@@ -207,7 +207,7 @@ ${helpers.predefined_type(
     initial_specified_value="specified::FontLanguageOverride::normal()",
     animation_value_type="discrete",
     extra_prefixes="moz:layout.css.prefixes.font-features",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     spec="https://drafts.csswg.org/css-fonts-3/#propdef-font-language-override",
 )}
 
@@ -219,7 +219,7 @@ ${helpers.single_keyword_system(
     gecko_ffi_name="mFont.opticalSizing",
     gecko_constant_prefix="NS_FONT_OPTICAL_SIZING",
     animation_value_type="discrete",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     spec="https://www.w3.org/TR/css-fonts-4/#font-optical-sizing-def",
 )}
 
@@ -514,7 +514,7 @@ ${helpers.single_keyword(
     gecko_pref="layout.css.osx-font-smoothing.enabled",
     products="gecko",
     spec="Nonstandard (https://developer.mozilla.org/en-US/docs/Web/CSS/font-smooth)",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     animation_value_type="discrete",
 )}
 
diff --git a/components/style/properties/longhands/inherited_box.mako.rs b/components/style/properties/longhands/inherited_box.mako.rs
index a7dee5dc03d..94ed265defa 100644
--- a/components/style/properties/longhands/inherited_box.mako.rs
+++ b/components/style/properties/longhands/inherited_box.mako.rs
@@ -38,6 +38,7 @@ ${helpers.single_keyword(
     animation_value_type="none",
     spec="https://drafts.csswg.org/css-writing-modes/#propdef-direction",
     needs_conversion=True,
+    flags="APPLIES_TO_MARKER",
     servo_restyle_damage="rebuild_and_reflow",
 )}
 
diff --git a/components/style/properties/longhands/inherited_text.mako.rs b/components/style/properties/longhands/inherited_text.mako.rs
index 7de8b5e20b1..f10f347e7f8 100644
--- a/components/style/properties/longhands/inherited_text.mako.rs
+++ b/components/style/properties/longhands/inherited_text.mako.rs
@@ -11,7 +11,7 @@ ${helpers.predefined_type(
     "ColorPropertyValue",
     "::cssparser::RGBA::new(0, 0, 0, 255)",
     animation_value_type="AnimatedRGBA",
-    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER",
+    flags="APPLIES_TO_CUE APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER APPLIES_TO_MARKER",
     ignored_when_colors_disabled="True",
     spec="https://drafts.csswg.org/css-color/#color",
 )}
@@ -349,7 +349,7 @@ ${helpers.single_keyword(
     products="gecko",
     animation_value_type="discrete",
     spec="https://drafts.csswg.org/css-writing-modes-3/#text-combine-upright",
-    flags="APPLIES_TO_CUE",
+    flags="APPLIES_TO_CUE APPLIES_TO_MARKER",
 )}
 
 // SVG 1.1: Section 11 - Painting: Filling, Stroking and Marker Symbols
diff --git a/components/style/properties/longhands/text.mako.rs b/components/style/properties/longhands/text.mako.rs
index f7c77a16029..44adc21766d 100644
--- a/components/style/properties/longhands/text.mako.rs
+++ b/components/style/properties/longhands/text.mako.rs
@@ -23,6 +23,7 @@ ${helpers.single_keyword(
     "normal embed isolate bidi-override isolate-override plaintext",
     animation_value_type="none",
     spec="https://drafts.csswg.org/css-writing-modes/#propdef-unicode-bidi",
+    flags="APPLIES_TO_MARKER",
     servo_restyle_damage="rebuild_and_reflow",
 )}
 
diff --git a/components/style/properties/properties.mako.rs b/components/style/properties/properties.mako.rs
index c4b0d9ece78..4f07d6feb84 100644
--- a/components/style/properties/properties.mako.rs
+++ b/components/style/properties/properties.mako.rs
@@ -956,13 +956,15 @@ bitflags! {
         const APPLIES_TO_PLACEHOLDER = 1 << 5;
         ///  This longhand property applies to ::cue.
         const APPLIES_TO_CUE = 1 << 6;
+        /// This longhand property applies to ::marker.
+        const APPLIES_TO_MARKER = 1 << 7;
         /// This property's getComputedStyle implementation requires layout
         /// to be flushed.
-        const GETCS_NEEDS_LAYOUT_FLUSH = 1 << 7;
+        const GETCS_NEEDS_LAYOUT_FLUSH = 1 << 8;
         /// This property is a legacy shorthand.
         ///
         /// https://drafts.csswg.org/css-cascade/#legacy-shorthand
-        const IS_LEGACY_SHORTHAND = 1 << 8;
+        const IS_LEGACY_SHORTHAND = 1 << 9;
 
         /* The following flags are currently not used in Rust code, they
          * only need to be listed in corresponding properties so that