diff --git a/components/style/properties/gecko.mako.rs b/components/style/properties/gecko.mako.rs
index 680dd340869..1f3e862df49 100644
--- a/components/style/properties/gecko.mako.rs
+++ b/components/style/properties/gecko.mako.rs
@@ -2578,97 +2578,15 @@ fn static_assert() {
 
 
 <%self:impl_trait style_struct_name="InheritedText"
-                  skip_longhands="text-align text-emphasis-style
-                                  -webkit-text-stroke-width text-emphasis-position">
+                  skip_longhands="text-align -webkit-text-stroke-width text-emphasis-position">
 
     <% text_align_keyword = Keyword("text-align",
                                     "start end left right center justify -moz-center -moz-left -moz-right char",
                                     gecko_strip_moz_prefix=False) %>
     ${impl_keyword('text_align', 'mTextAlign', text_align_keyword)}
 
-    fn clear_text_emphasis_style_if_string(&mut self) {
-        if self.gecko.mTextEmphasisStyle == structs::NS_STYLE_TEXT_EMPHASIS_STYLE_STRING as u8 {
-            self.gecko.mTextEmphasisStyleString.truncate();
-            self.gecko.mTextEmphasisStyle = structs::NS_STYLE_TEXT_EMPHASIS_STYLE_NONE as u8;
-        }
-    }
-
     ${impl_simple_type_with_conversion("text_emphasis_position")}
 
-    pub fn set_text_emphasis_style(&mut self, v: values::computed::TextEmphasisStyle) {
-        use crate::values::computed::TextEmphasisStyle;
-        use crate::values::specified::text::{TextEmphasisFillMode, TextEmphasisShapeKeyword};
-
-        self.clear_text_emphasis_style_if_string();
-        let (te, s) = match v {
-            TextEmphasisStyle::None => (structs::NS_STYLE_TEXT_EMPHASIS_STYLE_NONE, ""),
-            TextEmphasisStyle::Keyword { fill, shape } => {
-                let gecko_fill = match fill {
-                    TextEmphasisFillMode::Filled => structs::NS_STYLE_TEXT_EMPHASIS_STYLE_FILLED,
-                    TextEmphasisFillMode::Open => structs::NS_STYLE_TEXT_EMPHASIS_STYLE_OPEN,
-                };
-
-                let gecko_shape = match shape {
-                    TextEmphasisShapeKeyword::Dot => structs::NS_STYLE_TEXT_EMPHASIS_STYLE_DOT,
-                    TextEmphasisShapeKeyword::Circle => structs::NS_STYLE_TEXT_EMPHASIS_STYLE_CIRCLE,
-                    TextEmphasisShapeKeyword::DoubleCircle => structs::NS_STYLE_TEXT_EMPHASIS_STYLE_DOUBLE_CIRCLE,
-                    TextEmphasisShapeKeyword::Triangle => structs::NS_STYLE_TEXT_EMPHASIS_STYLE_TRIANGLE,
-                    TextEmphasisShapeKeyword::Sesame => structs::NS_STYLE_TEXT_EMPHASIS_STYLE_SESAME,
-                };
-
-                (gecko_shape | gecko_fill, shape.char(fill))
-            },
-            TextEmphasisStyle::String(ref s) => {
-                (structs::NS_STYLE_TEXT_EMPHASIS_STYLE_STRING, &**s)
-            },
-        };
-        self.gecko.mTextEmphasisStyleString.assign_str(s);
-        self.gecko.mTextEmphasisStyle = te as u8;
-    }
-
-    pub fn copy_text_emphasis_style_from(&mut self, other: &Self) {
-        self.clear_text_emphasis_style_if_string();
-        if other.gecko.mTextEmphasisStyle == structs::NS_STYLE_TEXT_EMPHASIS_STYLE_STRING as u8 {
-            self.gecko.mTextEmphasisStyleString
-                      .assign(&*other.gecko.mTextEmphasisStyleString)
-        }
-        self.gecko.mTextEmphasisStyle = other.gecko.mTextEmphasisStyle;
-    }
-
-    pub fn reset_text_emphasis_style(&mut self, other: &Self) {
-        self.copy_text_emphasis_style_from(other)
-    }
-
-    pub fn clone_text_emphasis_style(&self) -> values::computed::TextEmphasisStyle {
-        use crate::values::computed::TextEmphasisStyle;
-        use crate::values::specified::text::{TextEmphasisFillMode, TextEmphasisShapeKeyword};
-
-        if self.gecko.mTextEmphasisStyle == structs::NS_STYLE_TEXT_EMPHASIS_STYLE_NONE as u8 {
-            return TextEmphasisStyle::None;
-        }
-
-        if self.gecko.mTextEmphasisStyle == structs::NS_STYLE_TEXT_EMPHASIS_STYLE_STRING as u8 {
-            return TextEmphasisStyle::String(self.gecko.mTextEmphasisStyleString.to_string().into());
-        }
-
-        let fill =
-            self.gecko.mTextEmphasisStyle & structs::NS_STYLE_TEXT_EMPHASIS_STYLE_OPEN as u8 == 0;
-
-        let fill = if fill { TextEmphasisFillMode::Filled } else { TextEmphasisFillMode::Open };
-
-        let shape =
-            match self.gecko.mTextEmphasisStyle as u32 & !structs::NS_STYLE_TEXT_EMPHASIS_STYLE_OPEN {
-                structs::NS_STYLE_TEXT_EMPHASIS_STYLE_DOT => TextEmphasisShapeKeyword::Dot,
-                structs::NS_STYLE_TEXT_EMPHASIS_STYLE_CIRCLE => TextEmphasisShapeKeyword::Circle,
-                structs::NS_STYLE_TEXT_EMPHASIS_STYLE_DOUBLE_CIRCLE => TextEmphasisShapeKeyword::DoubleCircle,
-                structs::NS_STYLE_TEXT_EMPHASIS_STYLE_TRIANGLE => TextEmphasisShapeKeyword::Triangle,
-                structs::NS_STYLE_TEXT_EMPHASIS_STYLE_SESAME => TextEmphasisShapeKeyword::Sesame,
-                _ => panic!("Unexpected value in style struct for text-emphasis-style property")
-            };
-
-        TextEmphasisStyle::Keyword { fill, shape }
-    }
-
     ${impl_non_negative_length('_webkit_text_stroke_width',
                                'mWebkitTextStrokeWidth')}
 
diff --git a/components/style/values/computed/text.rs b/components/style/values/computed/text.rs
index 343d5f31f09..d2a619a3a20 100644
--- a/components/style/values/computed/text.rs
+++ b/components/style/values/computed/text.rs
@@ -195,8 +195,11 @@ impl TextDecorationsInEffect {
 }
 
 /// Computed value for the text-emphasis-style property
+///
+/// cbindgen:derive-tagged-enum-copy-constructor=true
 #[derive(Clone, Debug, MallocSizeOf, PartialEq, ToCss, ToResolvedValue)]
 #[allow(missing_docs)]
+#[repr(C, u8)]
 pub enum TextEmphasisStyle {
     /// [ <fill> || <shape> ]
     Keyword {
diff --git a/components/style/values/specified/text.rs b/components/style/values/specified/text.rs
index feb1b2124c7..f780715443c 100644
--- a/components/style/values/specified/text.rs
+++ b/components/style/values/specified/text.rs
@@ -671,6 +671,7 @@ pub enum TextEmphasisStyle {
 
 /// Fill mode for the text-emphasis-style property
 #[derive(Clone, Copy, Debug, MallocSizeOf, Parse, PartialEq, SpecifiedValueInfo, ToCss, ToShmem)]
+#[repr(u8)]
 pub enum TextEmphasisFillMode {
     /// `filled`
     Filled,
@@ -690,6 +691,7 @@ impl TextEmphasisFillMode {
 #[derive(
     Clone, Copy, Debug, Eq, MallocSizeOf, Parse, PartialEq, SpecifiedValueInfo, ToCss, ToShmem,
 )]
+#[repr(u8)]
 pub enum TextEmphasisShapeKeyword {
     /// `dot`
     Dot,
@@ -703,50 +705,6 @@ pub enum TextEmphasisShapeKeyword {
     Sesame,
 }
 
-impl TextEmphasisShapeKeyword {
-    /// converts fill mode to a unicode char
-    pub fn char(&self, fill: TextEmphasisFillMode) -> &'static str {
-        let fill = fill == TextEmphasisFillMode::Filled;
-        match *self {
-            TextEmphasisShapeKeyword::Dot => {
-                if fill {
-                    "\u{2022}"
-                } else {
-                    "\u{25e6}"
-                }
-            },
-            TextEmphasisShapeKeyword::Circle => {
-                if fill {
-                    "\u{25cf}"
-                } else {
-                    "\u{25cb}"
-                }
-            },
-            TextEmphasisShapeKeyword::DoubleCircle => {
-                if fill {
-                    "\u{25c9}"
-                } else {
-                    "\u{25ce}"
-                }
-            },
-            TextEmphasisShapeKeyword::Triangle => {
-                if fill {
-                    "\u{25b2}"
-                } else {
-                    "\u{25b3}"
-                }
-            },
-            TextEmphasisShapeKeyword::Sesame => {
-                if fill {
-                    "\u{fe45}"
-                } else {
-                    "\u{fe46}"
-                }
-            },
-        }
-    }
-}
-
 impl ToComputedValue for TextEmphasisStyle {
     type ComputedValue = ComputedTextEmphasisStyle;