diff --git a/toolkit/components/aboutmemory/content/aboutMemory.css b/toolkit/components/aboutmemory/content/aboutMemory.css
index 288119b99eb0..d2ba959c2430 100644
--- a/toolkit/components/aboutmemory/content/aboutMemory.css
+++ b/toolkit/components/aboutmemory/content/aboutMemory.css
@@ -36,8 +36,8 @@ div.section {
   margin: 1em 0em;
   border: 1px solid ThreeDShadow;
   border-radius: 10px;
-  background: -moz-Field;
-  color: -moz-FieldText;
+  background: Field;
+  color: FieldText;
 }
 
 div.outputContainer {
@@ -64,8 +64,8 @@ div.sidebarItem {
   margin: 1em 0em;
   border: 1px solid ThreeDShadow;
   border-radius: 10px;
-  background: -moz-Field;
-  color: -moz-FieldText;
+  background: Field;
+  color: FieldText;
   user-select: none;  /* no need to include this when cutting+pasting */
 }
 
@@ -89,8 +89,8 @@ div.opsRow {
   margin-top: 0.5em;
   border: 1px solid ThreeDShadow;
   border-radius: 10px;
-  background: -moz-Field;
-  color: -moz-FieldText;
+  background: Field;
+  color: FieldText;
   display: inline-block;
 }
 
@@ -144,7 +144,7 @@ a.upDownArrow {
 }
 
 .treeline {
-  color: -moz-FieldText;
+  color: FieldText;
   opacity: 0.5;
 }
 
diff --git a/toolkit/content/plugins.css b/toolkit/content/plugins.css
index 6a34fc36ed08..2ceb1b829721 100644
--- a/toolkit/content/plugins.css
+++ b/toolkit/content/plugins.css
@@ -7,8 +7,8 @@
    ======================================================================= */
 
 body {
-  background-color: -moz-Field;
-  color: -moz-FieldText;
+  background-color: Field;
+  color: FieldText;
   font: message-box;
 }
 
diff --git a/toolkit/themes/linux/global/autocomplete.css b/toolkit/themes/linux/global/autocomplete.css
index 501468d5e89a..9f6fa9b6c8f8 100644
--- a/toolkit/themes/linux/global/autocomplete.css
+++ b/toolkit/themes/linux/global/autocomplete.css
@@ -20,8 +20,8 @@ html|input[nomatch="true"][highlightnonmatches="true"] {
 panel[type="autocomplete-richlistbox"] {
   border: 1px solid ThreeDShadow;
   padding: 0;
-  color: -moz-FieldText;
-  background-color: -moz-Field;
+  color: FieldText;
+  background-color: Field;
   appearance: none;
 }
 
diff --git a/toolkit/themes/linux/global/global.css b/toolkit/themes/linux/global/global.css
index 8887e121084a..4e5ff8d91089 100644
--- a/toolkit/themes/linux/global/global.css
+++ b/toolkit/themes/linux/global/global.css
@@ -16,8 +16,8 @@
 
 :root {
   /* ::::: Variables ::::: */
-  --default-arrowpanel-background: -moz-field;
-  --default-arrowpanel-color: -moz-fieldText;
+  --default-arrowpanel-background: Field;
+  --default-arrowpanel-color: FieldText;
   --default-arrowpanel-border-color: ThreeDShadow;
   --arrowpanel-background: var(--default-arrowpanel-background);
   --arrowpanel-color: var(--default-arrowpanel-color);
diff --git a/toolkit/themes/linux/global/in-content/common.css b/toolkit/themes/linux/global/in-content/common.css
index fe3788126624..4e12b19210c0 100644
--- a/toolkit/themes/linux/global/in-content/common.css
+++ b/toolkit/themes/linux/global/in-content/common.css
@@ -45,8 +45,8 @@ xul|menulist::part(dropmarker) {
 
 xul|checkbox[checked] > xul|*.checkbox-check,
 xul|*.radio-check[selected] {
-  background-color: -moz-field;
-  fill: -moz-fieldText;
+  background-color: Field;
+  fill: FieldText;
 }
 
 xul|menulist:-moz-focusring::part(label-box) {
diff --git a/toolkit/themes/linux/global/netError.css b/toolkit/themes/linux/global/netError.css
index f3a05b793e6f..21866977ea8d 100644
--- a/toolkit/themes/linux/global/netError.css
+++ b/toolkit/themes/linux/global/netError.css
@@ -17,7 +17,7 @@ html {
 body {
   margin: 0;
   padding: 0 1em;
-  color: -moz-FieldText;
+  color: FieldText;
   font: message-box;
 }
 
@@ -50,7 +50,7 @@ ul {
   border-radius: 10px;
   padding: 3em;
   padding-inline-start: 30px;
-  background: url("moz-icon://stock/gtk-dialog-warning?size=dialog") left 0 no-repeat -moz-Field;
+  background: url("moz-icon://stock/gtk-dialog-warning?size=dialog") left 0 no-repeat Field;
   background-origin: content-box;
 }
 
diff --git a/toolkit/themes/linux/global/richlistbox.css b/toolkit/themes/linux/global/richlistbox.css
index 9274a0f742cd..2820198343d5 100644
--- a/toolkit/themes/linux/global/richlistbox.css
+++ b/toolkit/themes/linux/global/richlistbox.css
@@ -8,8 +8,8 @@ richlistbox {
   appearance: auto;
   -moz-default-appearance: listbox;
   margin: 2px 4px;
-  background-color: -moz-Field;
-  color: -moz-FieldText;
+  background-color: Field;
+  color: FieldText;
   overflow: auto;
 }
 
diff --git a/toolkit/themes/linux/global/search-textbox.css b/toolkit/themes/linux/global/search-textbox.css
index 08657948aeb0..128b81a36351 100644
--- a/toolkit/themes/linux/global/search-textbox.css
+++ b/toolkit/themes/linux/global/search-textbox.css
@@ -14,8 +14,8 @@
   margin: 2px 4px; /* matches <input> global.css margin */
   padding: 2px 2px 3px;
   padding-inline-start: 4px;
-  background-color: -moz-Field;
-  color: -moz-FieldText;
+  background-color: Field;
+  color: FieldText;
 }
 
 html|input {
diff --git a/toolkit/themes/mobile/global/aboutMemory.css b/toolkit/themes/mobile/global/aboutMemory.css
index fb3c916e6083..cf8a8bac27c4 100644
--- a/toolkit/themes/mobile/global/aboutMemory.css
+++ b/toolkit/themes/mobile/global/aboutMemory.css
@@ -36,8 +36,8 @@ div.section {
   margin: 1em 0em;
   border: 1px solid ThreeDShadow;
   border-radius: 10px;
-  background: -moz-Field;
-  color: -moz-FieldText;
+  background: Field;
+  color: FieldText;
 }
 
 div.outputContainer {
@@ -64,8 +64,8 @@ div.sidebarItem {
   margin: 1em 0em;
   border: 1px solid ThreeDShadow;
   border-radius: 10px;
-  background: -moz-Field;
-  color: -moz-FieldText;
+  background: Field;
+  color: FieldText;
   user-select: none;  /* no need to include this when cutting+pasting */
 }
 
@@ -89,8 +89,8 @@ div.opsRow {
   margin-top: 0.5em;
   border: 1px solid ThreeDShadow;
   border-radius: 10px;
-  background: -moz-Field;
-  color: -moz-FieldText;
+  background: Field;
+  color: FieldText;
   display: inline-block;
 }
 
@@ -129,7 +129,7 @@ h2 {
 }
 
 .treeline {
-  color: -moz-FieldText;
+  color: FieldText;
   opacity: 0.5;
 }
 
diff --git a/toolkit/themes/mobile/global/aboutSupport.css b/toolkit/themes/mobile/global/aboutSupport.css
index 4b3c71971148..3d057e6c7411 100644
--- a/toolkit/themes/mobile/global/aboutSupport.css
+++ b/toolkit/themes/mobile/global/aboutSupport.css
@@ -3,8 +3,8 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 html {
-  background-color: -moz-Field;
-  color: -moz-FieldText;
+  background-color: Field;
+  color: FieldText;
   font: message-box;
 }
 
diff --git a/toolkit/themes/osx/global/autocomplete.css b/toolkit/themes/osx/global/autocomplete.css
index 590e815f563c..87a3d3923a85 100644
--- a/toolkit/themes/osx/global/autocomplete.css
+++ b/toolkit/themes/osx/global/autocomplete.css
@@ -13,8 +13,8 @@ html|input[nomatch="true"][highlightnonmatches="true"] {
 
 panel[type="autocomplete-richlistbox"] {
   padding: 0px !important;
-  color: -moz-FieldText;
-  background-color: -moz-Field;
+  color: FieldText;
+  background-color: Field;
   font: icon;
   appearance: none;
 }
diff --git a/toolkit/themes/osx/global/dirListing/dirListing.css b/toolkit/themes/osx/global/dirListing/dirListing.css
index a6b7ecaa1234..ffa87f744251 100644
--- a/toolkit/themes/osx/global/dirListing/dirListing.css
+++ b/toolkit/themes/osx/global/dirListing/dirListing.css
@@ -16,8 +16,8 @@ body {
   min-width: 30em;
   max-width: 65em;
   margin: 4em auto;
-  background-color: -moz-field;
-  color: -moz-fieldtext;
+  background-color: Field;
+  color: FieldText;
 }
 
 h1 {
diff --git a/toolkit/themes/osx/global/menu.css b/toolkit/themes/osx/global/menu.css
index c4f6ad946753..efd610f9d98f 100644
--- a/toolkit/themes/osx/global/menu.css
+++ b/toolkit/themes/osx/global/menu.css
@@ -141,7 +141,7 @@ menulist > menupopup > menuitem,
 menulist > menupopup > menucaption,
 menulist > menupopup > menu {
   max-width: none;
-  color: -moz-FieldText;
+  color: FieldText;
 }
 
 /* checked menuitems */
diff --git a/toolkit/themes/osx/global/netError.css b/toolkit/themes/osx/global/netError.css
index b1e394686b79..f5fa76a3bb28 100644
--- a/toolkit/themes/osx/global/netError.css
+++ b/toolkit/themes/osx/global/netError.css
@@ -18,7 +18,7 @@ html {
 body {
   margin: 0;
   padding: 0 1em;
-  color: -moz-FieldText;
+  color: FieldText;
   font: message-box;
 }
 
@@ -52,7 +52,7 @@ ul {
   border-radius: 10px;
   padding: 3em;
   padding-inline-start: 30px;
-  background: url("chrome://global/skin/icons/warning-large.png") left 0 no-repeat -moz-Field;
+  background: url("chrome://global/skin/icons/warning-large.png") left 0 no-repeat Field;
   background-origin: content-box;
 }
 
diff --git a/toolkit/themes/osx/global/richlistbox.css b/toolkit/themes/osx/global/richlistbox.css
index 337f65456578..50b37c182114 100644
--- a/toolkit/themes/osx/global/richlistbox.css
+++ b/toolkit/themes/osx/global/richlistbox.css
@@ -8,8 +8,8 @@ richlistbox {
   appearance: auto;
   -moz-default-appearance: listbox;
   margin: 2px 4px;
-  background-color: -moz-Field;
-  color: -moz-FieldText;
+  background-color: Field;
+  color: FieldText;
   overflow: auto;
 }
 
diff --git a/toolkit/themes/osx/global/search-textbox.css b/toolkit/themes/osx/global/search-textbox.css
index 0b1f2e977d1f..634a05b46ce3 100644
--- a/toolkit/themes/osx/global/search-textbox.css
+++ b/toolkit/themes/osx/global/search-textbox.css
@@ -12,8 +12,8 @@
   cursor: text;
   margin: 4px; /* matches <input> global.css margin */
   padding: 1px;
-  background-color: -moz-Field;
-  color: -moz-FieldText;
+  background-color: Field;
+  color: FieldText;
 }
 
 html|input {
diff --git a/toolkit/themes/shared/aboutServiceWorkers.css b/toolkit/themes/shared/aboutServiceWorkers.css
index c3e4a32f0153..c04e9161cd37 100644
--- a/toolkit/themes/shared/aboutServiceWorkers.css
+++ b/toolkit/themes/shared/aboutServiceWorkers.css
@@ -21,7 +21,7 @@ body {
 }
 
 .warningMessage {
-  color: -moz-FieldText;
+  color: FieldText;
   position: relative;
   min-width: 330px;
   max-width: 50em;
@@ -30,7 +30,7 @@ body {
   border-radius: 10px;
   padding: 3em;
   padding-inline-start: 30px;
-  background: -moz-Field;
+  background: Field;
   margin-inline-start: auto;
   text-align: center;
 }
diff --git a/toolkit/themes/shared/findBar.inc.css b/toolkit/themes/shared/findBar.inc.css
index 9c9f91e96a6f..87fe4d5d8901 100644
--- a/toolkit/themes/shared/findBar.inc.css
+++ b/toolkit/themes/shared/findBar.inc.css
@@ -50,7 +50,7 @@ html|html[lwtheme-image] findbar {
 
 html|input.findbar-textbox {
   appearance: none;
-  background-color: -moz-Field;
+  background-color: Field;
   border: 1px solid var(--lwt-toolbar-field-border-color, ThreeDShadow);
   border-start-start-radius: 2px;
   border-end-start-radius: 2px;
@@ -61,13 +61,13 @@ html|input.findbar-textbox {
 }
 
 html|input.findbar-textbox:-moz-lwtheme {
-  background-color: var(--lwt-toolbar-field-background-color, -moz-Field);
-  color: var(--lwt-toolbar-field-color, -moz-FieldText);
+  background-color: var(--lwt-toolbar-field-background-color, Field);
+  color: var(--lwt-toolbar-field-color, FieldText);
 }
 
 html|input.findbar-textbox:focus {
-  background-color: var(--lwt-toolbar-field-focus, var(--lwt-toolbar-field-background-color, -moz-Field));
-  color: var(--lwt-toolbar-field-focus-color, var(--lwt-toolbar-field-color, -moz-FieldText));
+  background-color: var(--lwt-toolbar-field-focus, var(--lwt-toolbar-field-background-color, Field));
+  color: var(--lwt-toolbar-field-focus-color, var(--lwt-toolbar-field-color, FieldText));
   border-color: var(--toolbar-field-focus-border-color, Highlight);
 }
 
diff --git a/toolkit/themes/shared/tree.inc.css b/toolkit/themes/shared/tree.inc.css
index 952b454a3649..c41ce1c89ea2 100644
--- a/toolkit/themes/shared/tree.inc.css
+++ b/toolkit/themes/shared/tree.inc.css
@@ -13,8 +13,8 @@
 
 tree {
   margin: 0 4px;
-  background-color: -moz-Field;
-  color: -moz-FieldText;
+  background-color: Field;
+  color: FieldText;
   appearance: auto;
   -moz-default-appearance: listbox;
 }
diff --git a/toolkit/themes/windows/global/autocomplete.css b/toolkit/themes/windows/global/autocomplete.css
index 17779cdf395d..743644c7459f 100644
--- a/toolkit/themes/windows/global/autocomplete.css
+++ b/toolkit/themes/windows/global/autocomplete.css
@@ -20,8 +20,8 @@ html|input[nomatch="true"][highlightnonmatches="true"] {
 panel[type="autocomplete-richlistbox"] {
   appearance: none;
   padding: 0;
-  color: -moz-FieldText;
-  background-color: -moz-Field;
+  color: FieldText;
+  background-color: Field;
 }
 
 /* ::::: richlistbox autocomplete ::::: */
diff --git a/toolkit/themes/windows/global/dirListing/dirListing.css b/toolkit/themes/windows/global/dirListing/dirListing.css
index b8eecadd3cbe..0a9fbe98ee96 100644
--- a/toolkit/themes/windows/global/dirListing/dirListing.css
+++ b/toolkit/themes/windows/global/dirListing/dirListing.css
@@ -16,8 +16,8 @@ body {
   min-width: 30em;
   max-width: 65em;
   margin: 4em auto;
-  background-color: -moz-field;
-  color: -moz-fieldtext;
+  background-color: Field;
+  color: FieldText;
 }
 
 h1 {
diff --git a/toolkit/themes/windows/global/global.css b/toolkit/themes/windows/global/global.css
index 1dde8b9ea8c3..58e786bcb0f6 100644
--- a/toolkit/themes/windows/global/global.css
+++ b/toolkit/themes/windows/global/global.css
@@ -11,8 +11,8 @@
 :root {
   /* ::::: Variables ::::: */
   --arrowpanel-padding: 10px;
-  --default-arrowpanel-background: -moz-field;
-  --default-arrowpanel-color: -moz-fieldText;
+  --default-arrowpanel-background: Field;
+  --default-arrowpanel-color: FieldText;
   --default-arrowpanel-border-color: ThreeDShadow;
   --arrowpanel-background: var(--default-arrowpanel-background);
   --arrowpanel-color: var(--default-arrowpanel-color);
diff --git a/toolkit/themes/windows/global/in-content/common.css b/toolkit/themes/windows/global/in-content/common.css
index 8afbfbcb5d87..fb5ae3ed477e 100644
--- a/toolkit/themes/windows/global/in-content/common.css
+++ b/toolkit/themes/windows/global/in-content/common.css
@@ -20,8 +20,8 @@ xul|radio {
 @media (-moz-windows-default-theme: 0) {
   xul|checkbox[checked] > xul|*.checkbox-check,
   xul|*.radio-check[selected] {
-    fill: -moz-fieldText;
-    background-color: -moz-field;
+    fill: FieldText;
+    background-color: Field;
   }
 }
 
diff --git a/toolkit/themes/windows/global/menu.css b/toolkit/themes/windows/global/menu.css
index 8ad872e01a79..a238c19d66c7 100644
--- a/toolkit/themes/windows/global/menu.css
+++ b/toolkit/themes/windows/global/menu.css
@@ -184,7 +184,7 @@ menulist > menupopup > menu {
   border: 1px solid transparent;
   padding-inline: 5px;
   max-width: none;
-  color: -moz-FieldText;
+  color: FieldText;
 }
 
 menulist > menupopup > menuitem[_moz-menuactive="true"],
diff --git a/toolkit/themes/windows/global/menulist.css b/toolkit/themes/windows/global/menulist.css
index 3fcf0e2cc8dd..7ca8b28421a9 100644
--- a/toolkit/themes/windows/global/menulist.css
+++ b/toolkit/themes/windows/global/menulist.css
@@ -8,7 +8,7 @@
   appearance: auto;
   -moz-default-appearance: menulist;
   margin: 2px 4px;
-  color: -moz-FieldText;
+  color: FieldText;
   text-shadow: none;
 }
 
diff --git a/toolkit/themes/windows/global/netError.css b/toolkit/themes/windows/global/netError.css
index 0dfb9b1e5794..fe8c8483f3b2 100644
--- a/toolkit/themes/windows/global/netError.css
+++ b/toolkit/themes/windows/global/netError.css
@@ -18,7 +18,7 @@ html {
 body {
   margin: 0;
   padding: 0 1em;
-  color: -moz-FieldText;
+  color: FieldText;
   font: message-box;
 }
 
@@ -52,7 +52,7 @@ ul {
   border-radius: 10px;
   padding: 3em;
   padding-inline-start: 30px;
-  background: url("chrome://global/skin/icons/warning-large.png") left 0 no-repeat -moz-Field;
+  background: url("chrome://global/skin/icons/warning-large.png") left 0 no-repeat Field;
   background-origin: content-box;
 }
 
diff --git a/toolkit/themes/windows/global/popup.css b/toolkit/themes/windows/global/popup.css
index 71751df592ff..fd4f7712e704 100644
--- a/toolkit/themes/windows/global/popup.css
+++ b/toolkit/themes/windows/global/popup.css
@@ -128,5 +128,5 @@ panel[type="arrow"].panel-no-padding::part(arrowcontent) {
 menulist > menupopup {
   appearance: none;
   min-width: 0;
-  background-color: -moz-Field;
+  background-color: Field;
 }
diff --git a/toolkit/themes/windows/global/richlistbox.css b/toolkit/themes/windows/global/richlistbox.css
index a54b3ba9be8b..a874a8201cc9 100644
--- a/toolkit/themes/windows/global/richlistbox.css
+++ b/toolkit/themes/windows/global/richlistbox.css
@@ -8,8 +8,8 @@ richlistbox {
   appearance: auto;
   -moz-default-appearance: listbox;
   margin: 2px 4px;
-  background-color: -moz-Field;
-  color: -moz-FieldText;
+  background-color: Field;
+  color: FieldText;
   overflow: auto;
 }
 
@@ -83,7 +83,7 @@ richlistbox.theme-listbox > richlistitem > label {
     --listitem-selectedFocusCurrentBottomBorder: var(--listitem-selectedFocusBottomBorder);
     --listitem-selectedFocusCurrentBackground: var(--listitem-selectedFocusColor);
 
-    color: -moz-FieldText;
+    color: FieldText;
     margin-inline: 1px;
     padding-block: 1px;
     border-width: 1px;
diff --git a/toolkit/themes/windows/global/search-textbox.css b/toolkit/themes/windows/global/search-textbox.css
index 96c1b8222c9c..4b38dbf140c7 100644
--- a/toolkit/themes/windows/global/search-textbox.css
+++ b/toolkit/themes/windows/global/search-textbox.css
@@ -14,8 +14,8 @@
   margin: 2px 4px; /* matches <input> global.css margin */
   padding: 2px 2px 3px;
   padding-inline-start: 4px;
-  background-color: -moz-Field;
-  color: -moz-FieldText;
+  background-color: Field;
+  color: FieldText;
 }
 
 html|input {
diff --git a/toolkit/themes/windows/global/tabprompts.css b/toolkit/themes/windows/global/tabprompts.css
index 7227a7715b93..bb5a43930569 100644
--- a/toolkit/themes/windows/global/tabprompts.css
+++ b/toolkit/themes/windows/global/tabprompts.css
@@ -14,8 +14,8 @@ tabmodalprompt {
 
 .paymentDialogContainerFrame,
 .tabmodalprompt-mainContainer {
-  color: -moz-fieldText;
-  background-color: -moz-field;
+  color: FieldText;
+  background-color: Field;
   border-radius: 2px;
   border: 1px solid threeDDarkShadow;
 }