diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index a1105b63e..bf3dcb9dd 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -31,47 +31,47 @@
             android:label="@string/app_name"
             android:targetActivity=".activities.Github4AndroidActivity"/>
 
-        <activity android:name=".activities.BlogActivity" />
-        <activity android:name=".activities.BlogListActivity" />
-        <activity android:name=".activities.BookmarkListActivity" />
-        <activity android:name=".activities.CollaboratorListActivity" />
-        <activity android:name=".activities.CommitActivity" />
-        <activity android:name=".activities.CommitDiffViewerActivity" />
-        <activity android:name=".activities.CommitHistoryActivity" />
-        <activity android:name=".activities.CompareActivity" />
-        <activity android:name=".activities.ContributorListActivity" />
-        <activity android:name=".activities.DownloadsActivity" />
-        <activity android:name=".activities.EditCommitCommentActivity" />
-        <activity android:name=".activities.EditIssueCommentActivity" />
-        <activity android:name=".activities.EditPullRequestCommentActivity" />
-        <activity android:name=".activities.FileViewerActivity" />
-        <activity android:name=".activities.ForkListActivity" />
-        <activity android:name=".activities.FollowerFollowingListActivity" />
-        <activity android:name=".activities.GistActivity" />
-        <activity android:name=".activities.GistListActivity" />
-        <activity android:name=".activities.GistViewerActivity" />
-        <activity android:name=".activities.IssueActivity" />
-        <activity android:name=".activities.IssueEditActivity" />
-        <activity android:name=".activities.IssueLabelListActivity" />
-        <activity android:name=".activities.IssueListActivity" />
-        <activity android:name=".activities.IssueListMineActivity" />
-        <activity android:name=".activities.IssueMilestoneEditActivity" />
-        <activity android:name=".activities.IssueMilestoneListActivity" />
-        <activity android:name=".activities.OrganizationMemberListActivity" />
-        <activity android:name=".activities.PullRequestActivity" />
-        <activity android:name=".activities.PullRequestListActivity" />
-        <activity android:name=".activities.PullRequestDiffViewerActivity" />
-        <activity android:name=".activities.ReleaseInfoActivity" />
-        <activity android:name=".activities.ReleaseListActivity" />
-        <activity android:name=".activities.RepositoryActivity" />
-        <activity android:name=".activities.RepositoryListActivity" />
-        <activity android:name=".activities.SearchActivity" />
-        <activity android:name=".activities.TimelineActivity" />
-        <activity android:name=".activities.TrendingActivity" />
-        <activity android:name=".activities.UserActivity" />
-        <activity android:name=".activities.WatcherListActivity" />
-        <activity android:name=".activities.WikiActivity" />
-        <activity android:name=".activities.WikiListActivity" />
+        <activity android:name=".activities.BlogActivity" android:exported="false" />
+        <activity android:name=".activities.BlogListActivity" android:exported="false" />
+        <activity android:name=".activities.BookmarkListActivity" android:exported="false" />
+        <activity android:name=".activities.CollaboratorListActivity" android:exported="false" />
+        <activity android:name=".activities.CommitActivity" android:exported="false" />
+        <activity android:name=".activities.CommitDiffViewerActivity" android:exported="false" />
+        <activity android:name=".activities.CommitHistoryActivity" android:exported="false" />
+        <activity android:name=".activities.CompareActivity" android:exported="false" />
+        <activity android:name=".activities.ContributorListActivity" android:exported="false" />
+        <activity android:name=".activities.DownloadsActivity" android:exported="false" />
+        <activity android:name=".activities.EditCommitCommentActivity" android:exported="false" />
+        <activity android:name=".activities.EditIssueCommentActivity" android:exported="false" />
+        <activity android:name=".activities.EditPullRequestCommentActivity" android:exported="false" />
+        <activity android:name=".activities.FileViewerActivity" android:exported="false" />
+        <activity android:name=".activities.ForkListActivity" android:exported="false" />
+        <activity android:name=".activities.FollowerFollowingListActivity" android:exported="false" />
+        <activity android:name=".activities.GistActivity" android:exported="false" />
+        <activity android:name=".activities.GistListActivity" android:exported="false" />
+        <activity android:name=".activities.GistViewerActivity" android:exported="false" />
+        <activity android:name=".activities.IssueActivity" android:exported="false" />
+        <activity android:name=".activities.IssueEditActivity" android:exported="false" />
+        <activity android:name=".activities.IssueLabelListActivity" android:exported="false" />
+        <activity android:name=".activities.IssueListActivity" android:exported="false" />
+        <activity android:name=".activities.IssueListMineActivity" android:exported="false" />
+        <activity android:name=".activities.IssueMilestoneEditActivity" android:exported="false" />
+        <activity android:name=".activities.IssueMilestoneListActivity" android:exported="false" />
+        <activity android:name=".activities.OrganizationMemberListActivity" android:exported="false" />
+        <activity android:name=".activities.PullRequestActivity" android:exported="false" />
+        <activity android:name=".activities.PullRequestListActivity" android:exported="false" />
+        <activity android:name=".activities.PullRequestDiffViewerActivity" android:exported="false" />
+        <activity android:name=".activities.ReleaseInfoActivity" android:exported="false" />
+        <activity android:name=".activities.ReleaseListActivity" android:exported="false" />
+        <activity android:name=".activities.RepositoryActivity" android:exported="false" />
+        <activity android:name=".activities.RepositoryListActivity" android:exported="false" />
+        <activity android:name=".activities.SearchActivity" android:exported="false" />
+        <activity android:name=".activities.TimelineActivity" android:exported="false" />
+        <activity android:name=".activities.TrendingActivity" android:exported="false" />
+        <activity android:name=".activities.UserActivity" android:exported="false" />
+        <activity android:name=".activities.WatcherListActivity" android:exported="false" />
+        <activity android:name=".activities.WikiActivity" android:exported="false" />
+        <activity android:name=".activities.WikiListActivity" android:exported="false" />
 
         <activity
             android:name=".activities.SettingsActivity"