--- a/toolkit/components/extensions/ext-theme.js
+++ b/toolkit/components/extensions/ext-theme.js
@@ -130,16 +130,19 @@ class Theme {
         case "textcolor":
         case "tab_text":
           this.lwtStyles.textcolor = cssColor;
           break;
         case "toolbar":
           this.lwtStyles.toolbarColor = cssColor;
           break;
         case "toolbar_text":
+        case "bookmark_text":
+          this.lwtStyles.toolbar_text = cssColor;
+          break;
         case "toolbar_field":
         case "toolbar_field_text":
         case "toolbar_top_separator":
         case "toolbar_bottom_separator":
         case "toolbar_vertical_separator":
           this.lwtStyles[color] = cssColor;
           break;
       }

--- a/toolkit/components/extensions/schemas/theme.json
+++ b/toolkit/components/extensions/schemas/theme.json
@@ -68,16 +68,20 @@
               "toolbar": {
                 "type": "string",
                 "optional": true
               },
               "toolbar_text": {
                 "type": "string",
                 "optional": true
               },
+              "bookmark_text": {
+                "type": "string",
+                "optional": true
+              },
               "toolbar_field": {
                 "type": "string",
                 "optional": true
               },
               "toolbar_field_text": {
                 "type": "string",
                 "optional": true
               },

--- a/toolkit/components/extensions/test/browser/browser_ext_themes_toolbars.js
+++ b/toolkit/components/extensions/test/browser/browser_ext_themes_toolbars.js
@@ -50,8 +50,54 @@ add_task(async function test_support_too
 
   info("Checking selected tab colors");
   let selectedTab = document.querySelector(".tabbrowser-tab[selected]");
   Assert.equal(window.getComputedStyle(selectedTab).color,
     "rgb(" + hexToRGB(TOOLBAR_TEXT_COLOR).join(", ") + ")", "Selected tab text color should be set.");
 
   await extension.unload();
 });
+
+add_task(async function test_bookmark_text_property() {
+  const TOOLBAR_COLOR = "#ff00ff";
+  const TOOLBAR_TEXT_COLOR = "#9400ff";
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest: {
+      "theme": {
+        "images": {
+          "headerURL": "image1.png",
+        },
+        "colors": {
+          "accentcolor": ACCENT_COLOR,
+          "textcolor": TEXT_COLOR,
+          "toolbar": TOOLBAR_COLOR,
+          "bookmark_text": TOOLBAR_TEXT_COLOR,
+        },
+      },
+    },
+    files: {
+      "image1.png": BACKGROUND,
+    },
+  });
+
+  await extension.startup();
+
+  let toolbox = document.querySelector("#navigator-toolbox");
+  let toolbars = [...toolbox.querySelectorAll("toolbar:not(#TabsToolbar)")].filter(toolbar => {
+    let bounds = toolbar.getBoundingClientRect();
+    return bounds.width > 0 && bounds.height > 0;
+  });
+
+  info(`Checking toolbar colors for ${toolbars.length} toolbars.`);
+  for (let toolbar of toolbars) {
+    info(`Testing ${toolbar.id}`);
+    Assert.equal(window.getComputedStyle(toolbar).color,
+      "rgb(" + hexToRGB(TOOLBAR_TEXT_COLOR).join(", ") + ")",
+      "bookmark_text should be an alias for toolbar_text");
+  }
+
+  info("Checking selected tab colors");
+  let selectedTab = document.querySelector(".tabbrowser-tab[selected]");
+  Assert.equal(window.getComputedStyle(selectedTab).color,
+    "rgb(" + hexToRGB(TOOLBAR_TEXT_COLOR).join(", ") + ")", "Selected tab text color should be set.");
+
+  await extension.unload();
+});