diff --git a/omega-target-chromium-extension/src/tabs.coffee b/omega-target-chromium-extension/src/tabs.coffee
index 6f9456a..8ba3309 100644
--- a/omega-target-chromium-extension/src/tabs.coffee
+++ b/omega-target-chromium-extension/src/tabs.coffee
@@ -14,6 +14,7 @@ class ChromeTabs
     chrome.tabs.onUpdated.addListener @onUpdated.bind(this)
     chrome.tabs.onActivated.addListener (info) =>
       chrome.tabs.get info.tabId, (tab) =>
+        return if chrome.runtime.lastError
         if @_dirtyTabs.hasOwnProperty(info.tabId)
           @onUpdated tab.id, {}, tab