       if tabId of portsForTab
         delete portsForTab[tabId][frameId]
     HintCoordinator.unregisterFrame tabId, frameId
+    return
 
   isEnabledForUrl: ({request, tabId, port}) ->
     urlForTab[tabId] = request.url if request.frameIsFocused

      chrome.tabs.sendMessage tabId, {frameId, name: "executeScript", script: request.url}
    else
      chrome.tabs.update request.tabId, url: Utils.convertToUrl request.url

  # Opens request.url in new tab and switches to it.
  openUrlInNewTab: (request, callback = (->)) ->

          when "last"
            Math.max 0, tabs.length - count
      chrome.tabs.update tabs[toSelect].id, active: true
    return

chrome.webNavigation.onCommitted.addListener ({tabId, frameId}) ->
  cssConf =
