diff --git a/modules/mod_related_items/mod_related_items.xml b/modules/mod_related_items/mod_related_items.xml
index 676a49b1f51ba..ba567538a83a0 100644
--- a/modules/mod_related_items/mod_related_items.xml
+++ b/modules/mod_related_items/mod_related_items.xml
@@ -29,6 +29,7 @@
 					description="MOD_RELATED_FIELD_SHOWDATE_DESC"
 					class="btn-group btn-group-yesno"
 					default="0"
+					filter="integer"
 					>
 					<option value="1">JYES</option>
 					<option value="0">JNO</option>
@@ -40,6 +41,7 @@
 					label="MOD_RELATED_FIELD_MAX_LABEL"
 					description="MOD_RELATED_FIELD_MAX_DESC"
 					default="5"
+					filter="integer"
 				/>
 			</fieldset>
 			<fieldset name="advanced">
@@ -52,7 +54,7 @@
 
 				<field
 					name="moduleclass_sfx"
-					type="textarea" 
+					type="textarea"
 					label="COM_MODULES_FIELD_MODULECLASS_SFX_LABEL"
 					description="COM_MODULES_FIELD_MODULECLASS_SFX_DESC"
 					rows="3"
@@ -64,6 +66,7 @@
 					label="COM_MODULES_FIELD_CACHING_LABEL"
 					description="COM_MODULES_FIELD_CACHING_DESC"
 					default="1"
+					filter="integer"
 					>
 					<option value="1">JGLOBAL_USE_GLOBAL</option>
 					<option value="0">COM_MODULES_FIELD_VALUE_NOCACHING</option>
@@ -75,6 +78,7 @@
 					label="COM_MODULES_FIELD_CACHE_TIME_LABEL"
 					description="COM_MODULES_FIELD_CACHE_TIME_DESC"
 					default="900"
+					filter="integer"
 				/>
 			</fieldset>
 		</fields>
diff --git a/modules/mod_search/mod_search.xml b/modules/mod_search/mod_search.xml
index 2e879a3a2a940..f9df2a0521d9a 100644
--- a/modules/mod_search/mod_search.xml
+++ b/modules/mod_search/mod_search.xml
@@ -34,6 +34,7 @@
 					type="number"
 					label="MOD_SEARCH_FIELD_BOXWIDTH_LABEL"
 					description="MOD_SEARCH_FIELD_BOXWIDTH_DESC"
+					filter="integer"
 				/>
 
 				<field
@@ -49,6 +50,7 @@
 					label="MOD_SEARCH_FIELD_BUTTON_LABEL"
 					description="MOD_SEARCH_FIELD_BUTTON_DESC"
 					default="0"
+					filter="integer"
 					class="btn-group btn-group-yesno"
 					>
 					<option value="1">JYES</option>
@@ -75,6 +77,7 @@
 					label="MOD_SEARCH_FIELD_IMAGEBUTTON_LABEL"
 					description="MOD_SEARCH_FIELD_IMAGEBUTTON_DESC"
 					default="0"
+					filter="integer"
 					class="btn-group btn-group-yesno"
 					showon="button:1"
 					>
@@ -97,6 +100,7 @@
 					description="MOD_SEARCH_FIELD_OPENSEARCH_DESC"
 					class="btn-group btn-group-yesno"
 					default="1"
+					filter="integer"
 					>
 					<option value="1">JYES</option>
 					<option value="0">JNO</option>
@@ -116,6 +120,7 @@
 					label="MOD_SEARCH_FIELD_SETITEMID_LABEL"
 					description="MOD_SEARCH_FIELD_SETITEMID_DESC"
 					default="0"
+					filter="integer"
 					>
 					<option value="0">MOD_SEARCH_SELECT_MENU_ITEMID</option>
 				</field>
@@ -142,6 +147,7 @@
 					label="COM_MODULES_FIELD_CACHING_LABEL"
 					description="COM_MODULES_FIELD_CACHING_DESC"
 					default="1"
+					filter="integer"
 					>
 					<option value="1">JGLOBAL_USE_GLOBAL</option>
 					<option value="0">COM_MODULES_FIELD_VALUE_NOCACHING</option>
@@ -153,6 +159,7 @@
 					label="COM_MODULES_FIELD_CACHE_TIME_LABEL"
 					description="COM_MODULES_FIELD_CACHE_TIME_DESC"
 					default="900"
+					filter="integer"
 				/>
 
 				<field
diff --git a/modules/mod_stats/helper.php b/modules/mod_stats/helper.php
index 10201502b389f..492429cbb7279 100644
--- a/modules/mod_stats/helper.php
+++ b/modules/mod_stats/helper.php
@@ -29,10 +29,10 @@ public static function &getList(&$params)
 		$db         = JFactory::getDbo();
 		$rows       = array();
 		$query      = $db->getQuery(true);
-		$serverinfo = $params->get('serverinfo');
-		$siteinfo   = $params->get('siteinfo');
-		$counter    = $params->get('counter');
-		$increase   = $params->get('increase');
+		$serverinfo = $params->get('serverinfo', 0);
+		$siteinfo   = $params->get('siteinfo', 0);
+		$counter    = $params->get('counter', 0);
+		$increase   = $params->get('increase', 0);
 
 		$i = 0;
 
diff --git a/modules/mod_stats/mod_stats.php b/modules/mod_stats/mod_stats.php
index 65313d5d1db9c..01e5c78f71a38 100644
--- a/modules/mod_stats/mod_stats.php
+++ b/modules/mod_stats/mod_stats.php
@@ -12,8 +12,8 @@
 // Include the statistics functions only once
 JLoader::register('ModStatsHelper', __DIR__ . '/helper.php');
 
-$serverinfo      = $params->get('serverinfo');
-$siteinfo        = $params->get('siteinfo');
+$serverinfo      = $params->get('serverinfo', 0);
+$siteinfo        = $params->get('siteinfo', 0);
 $list            = ModStatsHelper::getList($params);
 $moduleclass_sfx = htmlspecialchars($params->get('moduleclass_sfx'), ENT_COMPAT, 'UTF-8');
 
diff --git a/modules/mod_stats/mod_stats.xml b/modules/mod_stats/mod_stats.xml
index 2a1281a5ec5cc..421a33ab9dc93 100644
--- a/modules/mod_stats/mod_stats.xml
+++ b/modules/mod_stats/mod_stats.xml
@@ -29,6 +29,7 @@
 					description="MOD_STATS_FIELD_SERVERINFO_DESC"
 					class="btn-group btn-group-yesno"
 					default="0"
+					filter="integer"
 					>
 					<option value="1">JYES</option>
 					<option value="0">JNO</option>
@@ -41,6 +42,7 @@
 					description="MOD_STATS_FIELD_SITEINFO_DESC"
 					class="btn-group btn-group-yesno"
 					default="0"
+					filter="integer"
 					>
 					<option value="1">JYES</option>
 					<option value="0">JNO</option>
@@ -53,6 +55,7 @@
 					description="MOD_STATS_FIELD_COUNTER_DESC"
 					class="btn-group btn-group-yesno"
 					default="0"
+					filter="integer"
 					>
 					<option value="1">JYES</option>
 					<option value="0">JNO</option>
@@ -64,6 +67,7 @@
 					label="MOD_STATS_FIELD_INCREASECOUNTER_LABEL"
 					description="MOD_STATS_FIELD_INCREASECOUNTER_DESC"
 					default="0"
+					filter="integer"
 				/>
 			</fieldset>
 			<fieldset name="advanced">
@@ -76,7 +80,7 @@
 
 				<field
 					name="moduleclass_sfx"
-					type="textarea" 
+					type="textarea"
 					label="COM_MODULES_FIELD_MODULECLASS_SFX_LABEL"
 					description="COM_MODULES_FIELD_MODULECLASS_SFX_DESC"
 					rows="3"
@@ -88,6 +92,7 @@
 					label="COM_MODULES_FIELD_CACHING_LABEL"
 					description="COM_MODULES_FIELD_CACHING_DESC"
 					default="1"
+					filter="integer"
 					>
 					<option value="1">JGLOBAL_USE_GLOBAL</option>
 					<option value="0">COM_MODULES_FIELD_VALUE_NOCACHING</option>
@@ -99,6 +104,7 @@
 					label="COM_MODULES_FIELD_CACHE_TIME_LABEL"
 					description="COM_MODULES_FIELD_CACHE_TIME_DESC"
 					default="900"
+					filter="integer"
 				/>
 
 				<field
diff --git a/modules/mod_syndicate/mod_syndicate.xml b/modules/mod_syndicate/mod_syndicate.xml
index 0bc07ef1808bf..ba96a059f7e4f 100644
--- a/modules/mod_syndicate/mod_syndicate.xml
+++ b/modules/mod_syndicate/mod_syndicate.xml
@@ -28,8 +28,8 @@
 					label="MOD_SYNDICATE_FIELD_DISPLAYTEXT_LABEL"
 					description="MOD_SYNDICATE_FIELD_DISPLAYTEXT_DESC"
 					default="1"
-					class="btn-group btn-group-yesno"
 					filter="integer"
+					class="btn-group btn-group-yesno"
 					>
 					<option value="1">JYES</option>
 					<option value="0">JNO</option>
@@ -76,6 +76,7 @@
 					label="COM_MODULES_FIELD_CACHING_LABEL"
 					description="COM_MODULES_FIELD_CACHING_DESC"
 					default="0"
+					filter="integer"
 					>
 					<option value="0">COM_MODULES_FIELD_VALUE_NOCACHING</option>
 				</field>
diff --git a/modules/mod_tags_popular/helper.php b/modules/mod_tags_popular/helper.php
index eb71c6e1e90d7..2de540c2a0807 100644
--- a/modules/mod_tags_popular/helper.php
+++ b/modules/mod_tags_popular/helper.php
@@ -54,7 +54,7 @@ public static function getList(&$params)
 		$query->where($db->quoteName('t.published') . ' = 1 ');
 
 		// Filter by Parent Tag
-		$parentTags = $params->get('parentTag', 0);
+		$parentTags = $params->get('parentTag', array());
 
 		if ($parentTags)
 		{
diff --git a/modules/mod_tags_popular/mod_tags_popular.xml b/modules/mod_tags_popular/mod_tags_popular.xml
index c60d823e075ff..9207e015b37e5 100644
--- a/modules/mod_tags_popular/mod_tags_popular.xml
+++ b/modules/mod_tags_popular/mod_tags_popular.xml
@@ -22,12 +22,13 @@
 	<config>
 		<fields name="params">
 			<fieldset name="basic">
-				<field 
+				<field
 					name="parentTag"
 					type="tag"
 					label="MOD_TAGS_POPULAR_PARENT_TAG_LABEL"
 					description="MOD_TAGS_POPULAR_PARENT_TAG_DESC"
 					multiple="true"
+					filter="int_array"
 				/>
 
 				<field
@@ -36,6 +37,7 @@
 					label="MOD_TAGS_POPULAR_MAX_LABEL"
 					description="MOD_TAGS_POPULAR_MAX_DESC"
 					default="5"
+					filter="integer"
 					first="1"
 					last="20"
 					step="1"
@@ -74,6 +76,7 @@
 					label="JGLOBAL_ORDER_DIRECTION_LABEL"
 					description="JGLOBAL_ORDER_DIRECTION_DESC"
 					default="1"
+					filter="integer"
 					>
 					<option value="0">JGLOBAL_ORDER_ASCENDING</option>
 					<option value="1">JGLOBAL_ORDER_DESCENDING</option>
@@ -99,6 +102,7 @@
 					description="MOD_TAGS_POPULAR_FIELD_NO_RESULTS_DESC"
 					class="btn-group btn-group-yesno"
 					default="0"
+					filter="integer"
 					>
 					<option value="1">JYES</option>
 					<option value="0">JNO</option>
@@ -149,6 +153,7 @@
 					label="COM_MODULES_FIELD_CACHING_LABEL"
 					description="COM_MODULES_FIELD_CACHING_DESC"
 					default="1"
+					filter="integer"
 					>
 					<option value="1">JGLOBAL_USE_GLOBAL</option>
 					<option value="0">COM_MODULES_FIELD_VALUE_NOCACHING</option>
@@ -160,6 +165,7 @@
 					label="COM_MODULES_FIELD_CACHE_TIME_LABEL"
 					description="COM_MODULES_FIELD_CACHE_TIME_DESC"
 					default="900"
+					filter="integer"
 				/>
 			</fieldset>
 		</fields>
diff --git a/modules/mod_tags_similar/mod_tags_similar.xml b/modules/mod_tags_similar/mod_tags_similar.xml
index abcc92a02eb78..8fd8c1268de54 100644
--- a/modules/mod_tags_similar/mod_tags_similar.xml
+++ b/modules/mod_tags_similar/mod_tags_similar.xml
@@ -28,6 +28,7 @@
 					label="MOD_TAGS_SIMILAR_MAX_LABEL"
 					description="MOD_TAGS_SIMILAR_MAX_DESC"
 					default="5"
+					filter="integer"
 					first="1"
 					last="20"
 					step="1"
@@ -79,6 +80,7 @@
 					label="COM_MODULES_FIELD_CACHING_LABEL"
 					description="COM_MODULES_FIELD_CACHING_DESC"
 					default="1"
+					filter="integer"
 					>
 					<option value="1">JGLOBAL_USE_GLOBAL</option>
 					<option value="0">COM_MODULES_FIELD_VALUE_NOCACHING</option>
@@ -90,6 +92,7 @@
 					label="COM_MODULES_FIELD_CACHE_TIME_LABEL"
 					description="COM_MODULES_FIELD_CACHE_TIME_DESC"
 					default="900"
+					filter="integer"
 				/>
 			</fieldset>
 		</fields>
diff --git a/modules/mod_users_latest/helper.php b/modules/mod_users_latest/helper.php
index 263c297165b0d..144ff78ee03cf 100644
--- a/modules/mod_users_latest/helper.php
+++ b/modules/mod_users_latest/helper.php
@@ -49,7 +49,7 @@ public static function getUsers($params)
 				->where('ug.id <> 1');
 		}
 
-		$db->setQuery($query, 0, $params->get('shownumber'));
+		$db->setQuery($query, 0, $params->get('shownumber', 5));
 
 		try
 		{
diff --git a/modules/mod_users_latest/mod_users_latest.xml b/modules/mod_users_latest/mod_users_latest.xml
index 7299144c3dffe..2304a834217a5 100644
--- a/modules/mod_users_latest/mod_users_latest.xml
+++ b/modules/mod_users_latest/mod_users_latest.xml
@@ -28,6 +28,7 @@
 					label="MOD_USERS_LATEST_FIELD_NUMBER_LABEL"
 					description="MOD_USERS_LATEST_FIELD_NUMBER_DESC"
 					default="5"
+					filter="integer"
 				/>
 
 				<field
@@ -37,6 +38,7 @@
 					description="MOD_USERS_LATEST_FIELD_FILTER_GROUPS_DESC"
 					class="btn-group btn-group-yesno"
 					default="0"
+					filter="integer"
 					>
 					<option value="1">JYES</option>
 					<option value="0">JNO</option>
@@ -64,6 +66,7 @@
 					label="COM_MODULES_FIELD_CACHING_LABEL"
 					description="COM_MODULES_FIELD_CACHING_DESC"
 					default="1"
+					filter="integer"
 					>
 					<option value="1">JGLOBAL_USE_GLOBAL</option>
 					<option value="0">COM_MODULES_FIELD_VALUE_NOCACHING</option>
@@ -75,6 +78,7 @@
 					label="COM_MODULES_FIELD_CACHE_TIME_LABEL"
 					description="COM_MODULES_FIELD_CACHE_TIME_DESC"
 					default="900"
+					filter="integer"
 				/>
 
 				<field
diff --git a/modules/mod_whosonline/mod_whosonline.xml b/modules/mod_whosonline/mod_whosonline.xml
index 8ab7fd351dcb1..fb68c44178712 100644
--- a/modules/mod_whosonline/mod_whosonline.xml
+++ b/modules/mod_whosonline/mod_whosonline.xml
@@ -28,6 +28,7 @@
 					label="MOD_WHOSONLINE_SHOWMODE_LABEL"
 					description="MOD_WHOSONLINE_SHOWMODE_DESC"
 					default="0"
+					filter="integer"
 					>
 					<option value="0">MOD_WHOSONLINE_FIELD_VALUE_NUMBER</option>
 					<option value="1">MOD_WHOSONLINE_FIELD_VALUE_NAMES</option>
@@ -41,6 +42,7 @@
 					description="MOD_WHOSONLINE_FIELD_FILTER_GROUPS_DESC"
 					class="btn-group btn-group-yesno"
 					default="0"
+					filter="integer"
 					>
 					<option value="1">JYES</option>
 					<option value="0">JNO</option>
@@ -68,6 +70,7 @@
 					label="COM_MODULES_FIELD_CACHING_LABEL"
 					description="COM_MODULES_FIELD_CACHING_DESC"
 					default="0"
+					filter="integer"
 					>
 					<option value="0">COM_MODULES_FIELD_VALUE_NOCACHING</option>
 				</field>
@@ -78,6 +81,7 @@
 					label="COM_MODULES_FIELD_CACHE_TIME_LABEL"
 					description="COM_MODULES_FIELD_CACHE_TIME_DESC"
 					default="900"
+					filter="integer"
 				/>
 			</fieldset>
 		</fields>
diff --git a/modules/mod_whosonline/tmpl/default.php b/modules/mod_whosonline/tmpl/default.php
index 41bb90bfa30bf..c2756b410f269 100644
--- a/modules/mod_whosonline/tmpl/default.php
+++ b/modules/mod_whosonline/tmpl/default.php
@@ -17,7 +17,7 @@
 <?php endif; ?>
 
 <?php if (($showmode > 0) && count($names)) : ?>
-	<?php if ($params->get('filter_groups')) : ?>
+	<?php if ($params->get('filter_groups', 0)) : ?>
 		<p><?php echo JText::_('MOD_WHOSONLINE_SAME_GROUP_MESSAGE'); ?></p>
 	<?php endif; ?>
 	<ul class="whosonline<?php echo $moduleclass_sfx; ?>">
diff --git a/modules/mod_wrapper/helper.php b/modules/mod_wrapper/helper.php
index 37e9fb7c3c075..2c0582a04e15b 100644
--- a/modules/mod_wrapper/helper.php
+++ b/modules/mod_wrapper/helper.php
@@ -30,9 +30,9 @@ public static function getParams(&$params)
 		$params->def('url', '');
 		$params->def('scrolling', 'auto');
 		$params->def('height', '200');
-		$params->def('height_auto', '0');
+		$params->def('height_auto', 0);
 		$params->def('width', '100%');
-		$params->def('add', '1');
+		$params->def('add', 1);
 		$params->def('name', 'wrapper');
 
 		$url = $params->get('url');
diff --git a/modules/mod_wrapper/mod_wrapper.xml b/modules/mod_wrapper/mod_wrapper.xml
index 3c3639956e627..4cf27f729f147 100644
--- a/modules/mod_wrapper/mod_wrapper.xml
+++ b/modules/mod_wrapper/mod_wrapper.xml
@@ -38,6 +38,7 @@
 					description="MOD_WRAPPER_FIELD_ADD_DESC"
 					class="btn-group btn-group-yesno"
 					default="1"
+					filter="integer"
 					>
 					<option value="1">JYES</option>
 					<option value="0">JNO</option>
@@ -80,6 +81,7 @@
 					description="MOD_WRAPPER_FIELD_AUTOHEIGHT_DESC"
 					class="btn-group btn-group-yesno"
 					default="1"
+					filter="integer"
 					>
 					<option value="1">JYES</option>
 					<option value="0">JNO</option>
@@ -92,6 +94,7 @@
 					description="MOD_WRAPPER_FIELD_FRAME_DESC"
 					class="btn-group btn-group-yesno"
 					default="1"
+					filter="integer"
 					>
 					<option value="1">JYES</option>
 					<option value="0">JNO</option>
@@ -127,6 +130,7 @@
 					label="COM_MODULES_FIELD_CACHING_LABEL"
 					description="COM_MODULES_FIELD_CACHING_DESC"
 					default="1"
+					filter="integer"
 					>
 					<option value="1">JGLOBAL_USE_GLOBAL</option>
 					<option value="0">COM_MODULES_FIELD_VALUE_NOCACHING</option>
@@ -138,6 +142,7 @@
 					label="COM_MODULES_FIELD_CACHE_TIME_LABEL"
 					description="COM_MODULES_FIELD_CACHE_TIME_DESC"
 					default="900"
+					filter="integer"
 				/>
 
 				<field