Add theme: Better Cleaned URL Bar

themes/96aaee84-2706-4b3c-82cf-a7a698b72048/chrome.css

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+
+@-moz-document url-prefix("chrome:") {
+
+/* Firefox 150+ / Zen 1.19.9b+ broke backdrop-filter on child
+     elements by removing the stacking context from #browser. Re-establishing
+     a no-op backdrop-filter on a parent element restores the behaviour. */
+  #browser {
+    backdrop-filter: blur(0) !important;
+  }
+
+/* Blurs the background */
+  #urlbar[breakout-extend="true"] .urlbar-background {
+    border-radius: 15px !important;
+    border: solid 3px color-mix(in hsl, hsl(0 0 50), transparent 90%) !important;
+  }
+
+#urlbar[breakout-extend="true"] .urlbar-background {
+    backdrop-filter: blur(25px) !important;
+  }
+
+@media (prefers-color-scheme: dark) {
+    #urlbar[breakout-extend="true"] .urlbar-background {
+      background-color: color-mix(in hsl,
+          var(--mod-cleanedurlbar-customdarkcolor),
+          transparent var(--mod-cleanedurlbar-customtransparency)) !important;
+    }
+  }
+
+@media (prefers-color-scheme: light) {
+    #urlbar[breakout-extend="true"] .urlbar-background {
+      background-color: color-mix(in hsl,
+          var(--mod-cleanedurlbar-customlightcolor),
+          transparent var(--mod-cleanedurlbar-customtransparency)) !important;
+    }
+  }
+
+/* Custom URL result selected color */
+  .urlbarView-row {
+    &[selected] {
+      background-color: var(--mod-cleanedurlbar-customselectcolor) !important;
+      color: var(--mod-cleanedurlbar-customselectfontcolor) !important;
+    }
+  }
+
+/* Unifies the border radius */
+  .urlbarView-row {
+    border-radius: 11px !important;
+  }
+
+/* Deletes the border */
+  .urlbarView-body-inner {
+    border: none !important;
+  }
+
+/* Styles the search options */
+  .search-one-offs {
+    border-top: none !important;
+    border-radius: 10px !important;
+    padding: 4px !important;
+    margin: 0px 0px 7px 0px !important;
+    backdrop-filter: brightness(130%);
+  }
+
+.searchbar-engine-one-off-item {
+    border-radius: 8px !important;
+    margin-right: 3px !important;
+  }
+
+#urlbar-anon-search-settings {
+    margin-right: 0px !important;
+  }
+}

themes/96aaee84-2706-4b3c-82cf-a7a698b72048/preferences.json

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+[
+    {
+        "property": "mod.cleanedurlbar.customdarkcolor",
+        "label": "Cleaned URL Bar Color (HSL only) [Dark Mode]",
+        "type": "string",
+        "defaultValue": "hsl(0 0 10)"
+    },
+    {
+        "property": "mod.cleanedurlbar.customlightcolor",
+        "label": "Cleaned URL Bar Color (HSL only) [Light Mode]",
+        "type": "string",
+        "defaultValue": "hsl(0 0 90)"
+    },
+    {
+        "property": "mod.cleanedurlbar.customtransparency",
+        "label": "Transparency (In percentage ex. 100%)",
+        "type": "string",
+        "defaultValue": "40%"
+    },
+    {
+        "property": "mod.cleanedurlbar.customselectcolor",
+        "label": "Selected URL color (rgb, hsl, hex)",
+        "type": "string",
+        "defaultValue": "rgba(125, 125, 125, 0.65)"
+    },
+    {
+        "property": "mod.cleanedurlbar.customselectfontcolor",
+        "label": "Selected URL font color (rgb, hsl, hex)",
+        "type": "string",
+        "defaultValue": "rgba(255,255,255,1)"
+    }
+]

themes/96aaee84-2706-4b3c-82cf-a7a698b72048/readme.md

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+
+# Zen Cleaned URL Bar (Maintained Fork)
+
+A maintained fork of [zen-cleaned-url-bar](https://github.com/dinnoyow/zen-cleaned-url-bar) by [@Dinno-DEV](https://github.com/dinnoyow), with bug fixes for recent Zen/Firefox versions.
+
+## What's different
+
+- **Fix transparent URL bar** — adds a no-op `backdrop-filter` on `#browser` to re-establish the stacking context removed upstream. Refs:
+  - https://github.com/zen-browser/desktop/issues/13389
+  - https://github.com/zen-browser/desktop/pull/13424
+- **Fix class selector** — `#urlbar-background` was converted to a class in Zen 1.16; updated selector to `.urlbar-background`
+
+## Customization
+
+- URL panel color
+- URL panel transparency
+- Selected result color
+- Selected result font color

themes/96aaee84-2706-4b3c-82cf-a7a698b72048/theme.json

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+{
+    "id": "96aaee84-2706-4b3c-82cf-a7a698b72048",
+    "name": "Better Cleaned URL Bar",
+    "description": "Elegant and minimalistic glassmorphic URL bar with blur, transparency and customizable colors",
+    "homepage": "https://github.com/matteo-tafuro/zen-better-cleaned-url-bar",
+    "style": "https://raw.githubusercontent.com/zen-browser/theme-store/main/themes/96aaee84-2706-4b3c-82cf-a7a698b72048/chrome.css",
+    "readme": "https://raw.githubusercontent.com/zen-browser/theme-store/main/themes/96aaee84-2706-4b3c-82cf-a7a698b72048/readme.md",
+    "image": "https://raw.githubusercontent.com/zen-browser/theme-store/main/themes/96aaee84-2706-4b3c-82cf-a7a698b72048/image.png",
+    "author": "matteo-tafuro",
+    "version": "1.0.0",
+    "tags": [],
+    "createdAt": "2026-05-05",
+    "updatedAt": "2026-05-05",
+    "preferences": "https://raw.githubusercontent.com/zen-browser/theme-store/main/themes/96aaee84-2706-4b3c-82cf-a7a698b72048/preferences.json"
+}