diff --git a/index.js b/index.js
index 44e80ac..36e5f1e 100644
--- a/index.js
+++ b/index.js
@@ -108,9 +108,8 @@ class Tab {
         this.setIcon(this.iconURL);
         this.setButtons();
 
-        tab.addEventListener("click", this.activate.bind(this), false);
+        tab.addEventListener("click", this.tabClickHandler.bind(this), false);
         this.tabGroup.tabContainer.appendChild(this.tab);
-        // TODO: handle middle click
     }
 
     initWebview () {
@@ -158,6 +157,14 @@ class Tab {
         }
     }
 
+    tabClickHandler (e) {
+        if (e.which === 1) {
+            this.activate();
+        } else if (e.which === 2) {
+            this.close();
+        }
+    }
+
     activate () {
         let activeTab = this.tabGroup.getActiveTab();
         if (activeTab) {