diff --git a/toolkit/mozapps/extensions/test/browser/browser_installssl.js b/toolkit/mozapps/extensions/test/browser/browser_installssl.js
index e3690f5a0c31..0e507816b81b 100644
--- a/toolkit/mozapps/extensions/test/browser/browser_installssl.js
+++ b/toolkit/mozapps/extensions/test/browser/browser_installssl.js
@@ -7,10 +7,27 @@ const redirect = RELATIVE_DIR + "redirect.sjs?";
 const SUCCESS = 0;
 
 var gTests = [];
+var gStart = 0;
+var gLast = 0;
+var gPendingInstall = null;
 
 function test() {
+  gStart = Date.now();
+  requestLongerTimeout(2);
   waitForExplicitFinish();
 
+  registerCleanupFunction(function() {
+    if (gPendingInstall) {
+      gTests = [];
+      ok(false, "Timed out in the middle of downloading " + gPendingInstall.sourceURL);
+      try {
+        gPendingInstall.cancel();
+      }
+      catch (e) {
+      }
+    }
+  });
+
   run_next_test();
 }
 
@@ -22,6 +39,7 @@ function end_test() {
   cos.clearValidityOverride("untrusted.example.com", -1);
   cos.clearValidityOverride("expired.example.com", -1);
 
+  info("All tests completed in " + (Date.now() - gStart) + "ms");
   finish();
 }
 
@@ -35,20 +53,26 @@ function run_install_tests(callback) {
       callback();
       return;
     }
+    gLast = Date.now();
 
     let [url, expectedStatus, message] = gTests.shift();
     AddonManager.getInstallForURL(url, function(install) {
+      gPendingInstall = install;
       install.addListener({
         onDownloadEnded: function(install) {
           is(SUCCESS, expectedStatus, message);
-          run_next_install_test();
+          info("Install test ran in " + (Date.now() - gLast) + "ms");
           // Don't proceed with the install
           install.cancel();
+          gPendingInstall = null;
+          run_next_install_test();
           return false;
         },
 
         onDownloadFailed: function(install) {
           is(install.error, expectedStatus, message);
+          info("Install test ran in " + (Date.now() - gLast) + "ms");
+          gPendingInstall = null;
           run_next_install_test();
         }
       });
diff --git a/toolkit/mozapps/extensions/test/browser/browser_updatessl.js b/toolkit/mozapps/extensions/test/browser/browser_updatessl.js
index f39ed37cbbcf..5eb9fda7a8ad 100644
--- a/toolkit/mozapps/extensions/test/browser/browser_updatessl.js
+++ b/toolkit/mozapps/extensions/test/browser/browser_updatessl.js
@@ -9,8 +9,12 @@ const redirect = RELATIVE_DIR + "redirect.sjs?";
 const SUCCESS = 0;
 
 var gTests = [];
+var gStart = 0;
+var gLast = 0;
 
 function test() {
+  gStart = Date.now();
+  requestLongerTimeout(2);
   waitForExplicitFinish();
 
   run_next_test();
@@ -24,6 +28,7 @@ function end_test() {
   cos.clearValidityOverride("untrusted.example.com", -1);
   cos.clearValidityOverride("expired.example.com", -1);
 
+  info("All tests completed in " + (Date.now() - gStart) + "ms");
   finish();
 }
 
@@ -37,6 +42,7 @@ function run_update_tests(callback) {
       callback();
       return;
     }
+    gLast = Date.now();
 
     let [url, expectedStatus, message] = gTests.shift();
     AddonUpdateChecker.checkForUpdates("addon1@tests.mozilla.org", "extension",
@@ -44,11 +50,13 @@ function run_update_tests(callback) {
       onUpdateCheckComplete: function(updates) {
         is(updates.length, 1);
         is(SUCCESS, expectedStatus, message);
+        info("Update test ran in " + (Date.now() - gLast) + "ms");
         run_next_update_test();
       },
 
       onUpdateCheckError: function(status) {
         is(status, expectedStatus, message);
+        info("Update test ran in " + (Date.now() - gLast) + "ms");
         run_next_update_test();
       }
     });