Adds an example for devtools inspector sidebar

devtools-inspector-sidebar/devtools/devtools.js

@@ -0,0 +1,11 @@
+/**
+This script is run whenever the devtools are open.
+In here, we can create our sidebar, and when the selected node in the inspector
+change, we evaluate it and display its properties in the sidebar.
+*/
+
+browser.devtools.panels.elements.createSidebarPane("DOM").then(sidebar => {
+  browser.devtools.panels.elements.onSelectionChanged.addListener(() => {
+    sidebar.setExpression(`$0`);
+  });
+});