diff --git a/toolkit/mozapps/extensions/test/browser/Makefile.in b/toolkit/mozapps/extensions/test/browser/Makefile.in
index 658f0b49469b..b569bedaed0c 100644
--- a/toolkit/mozapps/extensions/test/browser/Makefile.in
+++ b/toolkit/mozapps/extensions/test/browser/Makefile.in
@@ -59,6 +59,7 @@ MOCHITEST_BROWSER_MAIN = \
   browser_types.js \
   browser_inlinesettings.js \
   browser_tabsettings.js \
+  browser_pluginprefs.js \
   $(NULL)
 
 MOCHITEST_BROWSER_SECONDARY = \
diff --git a/toolkit/mozapps/extensions/test/browser/browser_pluginprefs.js b/toolkit/mozapps/extensions/test/browser/browser_pluginprefs.js
new file mode 100644
index 000000000000..dc0262eb9956
--- /dev/null
+++ b/toolkit/mozapps/extensions/test/browser/browser_pluginprefs.js
@@ -0,0 +1,59 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+// Tests the detail view of plugins
+
+var gManagerWindow;
+
+function test() {
+  waitForExplicitFinish();
+
+  open_manager("addons://list/plugin", function(aWindow) {
+    gManagerWindow = aWindow;
+
+    run_next_test();
+  });
+}
+
+function end_test() {
+  close_manager(gManagerWindow, function() {
+    finish();
+  });
+}
+
+add_test(function() {
+  AddonManager.getAddonsByTypes(["plugin"], function(plugins) {
+    let testPluginId;
+    for (let plugin of plugins) {
+      if (plugin.name == "Test Plug-in") {
+        testPluginId = plugin.id;
+        break;
+      }
+    }
+    ok(testPluginId, "Test Plug-in should exist")
+
+    AddonManager.getAddonByID(testPluginId, function(testPlugin) {
+      let pluginEl = get_addon_element(gManagerWindow, testPluginId);
+      is(pluginEl.mAddon.optionsType, AddonManager.OPTIONS_TYPE_INLINE, "Options should be inline type");
+      pluginEl.parentNode.ensureElementIsVisible(pluginEl);
+
+      let button = gManagerWindow.document.getAnonymousElementByAttribute(pluginEl, "anonid", "preferences-btn");
+      is_element_visible(button, "Preferences button should be visible");
+      EventUtils.synthesizeMouseAtCenter(button, { clickCount: 1 }, gManagerWindow);
+
+      wait_for_view_load(gManagerWindow, function() {
+        let pluginLibraries = gManagerWindow.document.getElementById("pluginLibraries");
+        ok(pluginLibraries, "Plugin file name row should be displayed");
+        // the file name depends on the platform
+        ok(pluginLibraries.textContent, testPlugin.pluginLibraries, "Plugin file name should be displayed");
+
+        let pluginMimeTypes = gManagerWindow.document.getElementById("pluginMimeTypes");
+        ok(pluginMimeTypes, "Plugin mime type row should be displayed");
+        ok(pluginMimeTypes.textContent, "application/x-test (tst)", "Plugin mime type should be displayed");
+
+        run_next_test();
+      });
+    });
+  });
+});