1 files changed, 1 insertions, 1 deletions
diff --git a/browser/components/extensions/parent/ext-devtools-panels.js b/browser/components/extensions/parent/ext-devtools-panels.js
index 9f0dba5c25..6b83ea5dbb 100644
--- a/browser/components/extensions/parent/ext-devtools-panels.js
+++ b/browser/components/extensions/parent/ext-devtools-panels.js
@@ -593,7 +593,7 @@ this.devtools_panels = class extends ExtensionAPI {
               context,
               name: "devtools.panels.elements.onSelectionChanged",
               register: fire => {
-                const listener = eventName => {
+                const listener = () => {
                   fire.async();
                 };
                 toolboxSelectionObserver.on("selectionChanged", listener);