diff --git a/phpBB/adm/style/acp_ext_list.html b/phpBB/adm/style/acp_ext_list.html
index 8408ebe748..09cf6a31f5 100644
--- a/phpBB/adm/style/acp_ext_list.html
+++ b/phpBB/adm/style/acp_ext_list.html
@@ -55,5 +55,22 @@
 		<!-- ENDIF -->
 	</tbody>
 	</table>
+	<br />
+
+	<table class="table1">
+	<tr>
+		<th>{L_EXTENSION_UPDATE_HEADLINE}</th>
+	</tr>
+	<tr>
+		<td class="row3">{L_EXTENSION_UPDATE_EXPLAIN}</td>
+	</tr>
+	<tr>
+		<th>{L_EXTENSION_REMOVE_HEADLINE}</th>
+	</tr>
+	<tr>
+		<td class="row3">{L_EXTENSION_REMOVE_EXPLAIN}</td>
+	</tr>
+	</tbody>
+	</table>
 
 <!-- INCLUDE overall_footer.html -->
diff --git a/phpBB/language/en/acp/extensions.php b/phpBB/language/en/acp/extensions.php
index 67b34ff0c7..409b800ba6 100644
--- a/phpBB/language/en/acp/extensions.php
+++ b/phpBB/language/en/acp/extensions.php
@@ -64,9 +64,22 @@ $lang = array_merge($lang, array(
 	'EXTENSION_DISABLE_SUCCESS'		=> 'The extension was disabled successfully',
 	'EXTENSION_ENABLE_SUCCESS'		=> 'The extension was enabled successfully',
 
-	'EXTENSION_NAME'		=> 'Extension Name',
-	'EXTENSION_ACTIONS'		=> 'Actions',
-	'EXTENSION_OPTIONS'		=> 'Options',
+	'EXTENSION_NAME'			=> 'Extension Name',
+	'EXTENSION_ACTIONS'			=> 'Actions',
+	'EXTENSION_OPTIONS'			=> 'Options',
+	'EXTENSION_UPDATE_HEADLINE'	=> 'Updating an extension',
+	'EXTENSION_UPDATE_EXPLAIN'	=> '<ol>
+			<li>Disable the extension</li>
+			<li>Delete the extension’s files from the filesystem</li>
+			<li>Upload the new files</li>
+			<li>Enable the extension</li>
+		</ol>',
+	'EXTENSION_REMOVE_HEADLINE'	=> 'Completly removing an extension from your board',
+	'EXTENSION_REMOVE_EXPLAIN'	=> '<ol>
+			<li>Disable the extension</li>
+			<li>Delete the extension’s data</li>
+			<li>Delete the extension’s files from the filesystem</li>
+		</ol>',
 
 	'EXTENSION_DELETE_DATA_CONFIRM'	=> 'Are you sure that you wish to delete the data associated with “%s”?<br /><br />This removes all of its data and settings and cannot be undone!',
 	'EXTENSION_DISABLE_CONFIRM'		=> 'Are you sure that you wish to disable the “%s” extension?',