diff --git a/addon/content.coffee b/addon/content.coffee
new file mode 100644
index 00000000..2d0d796b
--- /dev/null
+++ b/addon/content.coffee
@@ -0,0 +1,10 @@
+# Just a test
+#
+#
+
+console.log("hello")
+
+historyHandler = (message) ->
+    window.history.go(message.number)
+
+browser.runtime.onMessage.addListener(historyHandler)
diff --git a/addon/main.coffee b/addon/main.coffee
index 68890e56..ba13c097 100644
--- a/addon/main.coffee
+++ b/addon/main.coffee
@@ -77,9 +77,20 @@ tabByIndex = (index) ->
             desiredTab = tab for tab in tabs when tab.index == desIndex
     )
 
+goHistory = (n) ->
+    browser.tabs.query({active:true}).then(
+        (tabs) ->
+            activeTab = tabs[0]
+            browser.tabs.executeScript(activeTab.id, {file:"content.js"})
+            # We could use null in executeScript, and it would default to active tab
+            # but I think that is less readable
+            browser.tabs.sendMessage(activeTab.id,{number:n})
+    )
+
+
+
 Number.prototype.mod = (n) ->
     ((this%n)+n)%n
     # Javascript doens't understand maths
-    # Lots of people use myFunc: ()-> \\ rather than \\ myFunc = () -> \\ do we care?
 
 console.log("Loaded Tridactyl")
diff --git a/addon/manifest.json b/addon/manifest.json
index 8f9a10cf..a9c2aa76 100644
--- a/addon/manifest.json
+++ b/addon/manifest.json
@@ -11,6 +11,30 @@
   "browser_action": {
     "default_title": "Tridactyl",
     "browser_style": true
-  }
+  },
+
+  "permissions": [
+      "activeTab",
+      "alarms",
+      "bookmarks",
+      "contextMenus",
+      "cookies",
+      "downloads",
+      "downloads.open",
+      "history",
+      "identity",
+      "idle",
+      "management",
+      "nativeMessaging",
+      "notifications",
+      "sessions",
+      "storage",
+      "tabs",
+      "topSites",
+      "webNavigation",
+      "webRequest",
+      "webRequestBlocking",
+      "<all_urls>"
+    ]
 
 }
diff --git a/ideas.md b/ideas.md
index 119538ed..ca953e1c 100644
--- a/ideas.md
+++ b/ideas.md
@@ -65,5 +65,10 @@ Loading into firefox doesn't give any errors / doesn't seem to expose any functi
 
 # Other stuff
 Would be nice to have self-writing documentation, for autocmd use etc?
+Could use .litcoffee for markdown comments in code.
 
 History seems to be window.history.go(), presumably in a content script?
+
+https://news.ycombinator.com/item?id=10120773 -- people complaining, could be handy
+
+https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/tabs/executeScript -- we aren't allowed to inject JS into, e.g. about: pages. This means no searching, no back/forward, no commandline: a user navigating to such a page would get trapped.