Index: lib/subscriptionInit.js
===================================================================
--- a/lib/subscriptionInit.js
+++ b/lib/subscriptionInit.js
@@ -23,10 +23,12 @@
        SpecialSubscription} = require("subscriptionClasses");
 const {FilterStorage} = require("filterStorage");
 const {FilterNotifier} = require("filterNotifier");
+const info = require("info");
 const {Prefs} = require("prefs");
 const {Synchronizer} = require("synchronizer");
 const {Utils} = require("utils");
 const {initNotifications} = require("notificationHelper");
+const {updatesVersion} = require("../adblockplusui/lib/prefs");
 
 let firstRun;
 let subscriptionsCallback = null;
@@ -48,7 +50,7 @@
   if (firstRun && (!FilterStorage.firstRun || Prefs.currentVersion))
     exports.reinitialized = true;
 
-  Prefs.currentVersion = require("info").addonVersion;
+  Prefs.currentVersion = info.addonVersion;
 }
 
 /**
@@ -204,8 +206,30 @@
       Synchronizer.execute(subscription);
   }
 
-  if (firstRun && !Prefs.suppress_first_run_page)
-    browser.tabs.create({url: browser.extension.getURL("firstRun.html")});
+  if (!Prefs.suppress_first_run_page)
+  {
+    let page = null;
+    if (firstRun)
+    {
+      page = "firstRun.html";
+    }
+    // For now we're limiting the updates page to users of
+    // Chromium-based browsers to gage its impact
+    else if (info.platform == "chromium" &&
+             updatesVersion > Prefs.last_updates_page_displayed)
+    {
+      page = "updates.html";
+    }
+
+    if (page)
+    {
+      browser.tabs.create({url: browser.extension.getURL(page)});
+
+      // For new users and users that have already seen this updates page we
+      // want to avoid showing it again for subsequent updates.
+      Prefs.last_updates_page_displayed = updatesVersion;
+    }
+  }
 
   initNotifications();
 }