diff --git a/classes/pluginhost.php b/classes/pluginhost.php
index e43b39f9..d7db7481 100644
--- a/classes/pluginhost.php
+++ b/classes/pluginhost.php
@@ -1,9 +1,4 @@
 <?php
-/* create table ttrss_plugin_storage
-	(id serial not null primary key, name varchar(100) not null,
-		owner_uid integer not null references ttrss_users(id) ON DELETE CASCADE,
-		content text not null) - not in schema yet
-*/
 class PluginHost {
 	private $link;
 	private $hooks = array();
@@ -81,9 +76,9 @@ class PluginHost {
 			return array();
 		}
 	}
-	function load_all($kind) {
+	function load_all($kind, $owner_uid = false) {
 		$plugins = array_map("basename", glob("plugins/*"));
-		$this->load(join(",", $plugins), $kind);
+		$this->load(join(",", $plugins), $kind, $owner_uid);
 	}
 
 	function load($classlist, $kind, $owner_uid = false) {
@@ -263,7 +258,7 @@ class PluginHost {
 		if ($sync) $this->save_data(get_class($sender));
 	}
 
-	function get($sender, $name, $default_value) {
+	function get($sender, $name, $default_value = false) {
 		$idx = get_class($sender);
 
 		if (isset($this->storage[$idx][$name])) {
@@ -278,5 +273,18 @@ class PluginHost {
 
 		return $this->storage[$idx];
 	}
+
+	function clear_data($sender) {
+		if ($this->owner_uid) {
+			$idx = get_class($sender);
+
+			unset($this->storage[$idx]);
+
+			db_query($this->link, "DELETE FROM ttrss_plugin_storage WHERE name = '$idx'
+				AND owner_uid = " . $this->owner_uid);
+
+			$_SESSION["plugin_storage"] = $this->storage;
+		}
+	}
 }
 ?>
diff --git a/classes/pref/prefs.php b/classes/pref/prefs.php
index 0922e43a..bb82b355 100644
--- a/classes/pref/prefs.php
+++ b/classes/pref/prefs.php
@@ -683,8 +683,9 @@ class Pref_Prefs extends Handler_Protected {
 		$system_enabled = array_map("trim", explode(",", PLUGINS));
 		$user_enabled = array_map("trim", explode(",", get_pref($this->link, "_ENABLED_PLUGINS")));
 
-		$tmppluginhost = new PluginHost($link);
-		$tmppluginhost->load_all($tmppluginhost::KIND_ALL);
+		$tmppluginhost = new PluginHost($this->link);
+		$tmppluginhost->load_all($tmppluginhost::KIND_ALL, $_SESSION["uid"]);
+		$tmppluginhost->load_data(true);
 
 		foreach ($tmppluginhost->get_plugins() as $name => $plugin) {
 			$about = $plugin->about();
@@ -707,6 +708,11 @@ class Pref_Prefs extends Handler_Protected {
 				print "<td>" . htmlspecialchars(sprintf("%.2f", $about[0])) . "</td>";
 				print "<td>" . htmlspecialchars($about[2]) . "</td>";
 
+				if (count($tmppluginhost->get_all($plugin)) > 0) {
+					print "<td><a href='#' onclick=\"clearPluginData('$name')\"
+						class='visibleLink'>".__("Clear data")."</a></td>";
+				}
+
 				print "</tr>";
 
 			}
@@ -752,6 +758,10 @@ class Pref_Prefs extends Handler_Protected {
 				print "<td>" . htmlspecialchars(sprintf("%.2f", $about[0])) . "</td>";
 				print "<td>" . htmlspecialchars($about[2]) . "</td>";
 
+				if (count($tmppluginhost->get_all($plugin)) > 0) {
+					print "<td><a href='#' onclick=\"clearPluginData('$name')\" class='visibleLink'>".__("Clear data")."</a></td>";
+				}
+
 				print "</tr>";
 
 
@@ -846,5 +856,12 @@ class Pref_Prefs extends Handler_Protected {
 
 		set_pref($this->link, "_ENABLED_PLUGINS", $plugins);
 	}
+
+	function clearplugindata() {
+		$name = db_escape_string($_REQUEST["name"]);
+
+		global $pluginhost;
+		$pluginhost->clear_data($pluginhost->get_plugin($name));
+	}
 }
 ?>
diff --git a/include/functions.php b/include/functions.php
index b382b406..89e767e2 100644
--- a/include/functions.php
+++ b/include/functions.php
@@ -1,6 +1,6 @@
 <?php
 	define('EXPECTED_CONFIG_VERSION', 26);
-	define('SCHEMA_VERSION', 100);
+	define('SCHEMA_VERSION', 101);
 
 	$fetch_last_error = false;
 	$pluginhost = false;
@@ -547,25 +547,6 @@
 		if (!SINGLE_USER_MODE) {
 
 			$user_id = false;
-			/* $modules = explode(",", AUTH_MODULES);
-
-			foreach ($modules as $module) {
-				$module_class = "auth_$module";
-				if (class_exists($module_class)) {
-					$authenticator = new $module_class($link);
-
-					$user_id = (int) $authenticator->authenticate($login, $password);
-
-					if ($user_id) {
-						$_SESSION["auth_module"] = $module;
-						break;
-					}
-
-				} else {
-					print T_sprintf("Fatal: authentication module %s not found.", $module);
-					die;
-				}
-			} */
 
 			global $pluginhost;
 			foreach ($pluginhost->get_hooks($pluginhost::HOOK_AUTH_USER) as $plugin) {
diff --git a/js/prefs.js b/js/prefs.js
index 0b3f47c0..7ee88ab5 100644
--- a/js/prefs.js
+++ b/js/prefs.js
@@ -1925,3 +1925,20 @@ function toggleAdvancedPrefs() {
 		exception_error("toggleAdvancedPrefs", e);
 	}
 }
+
+function clearPluginData(name) {
+	try {
+		if (confirm(__("Clear stored data for this plugin?"))) {
+			notify_progress("Loading, please wait...");
+
+			new Ajax.Request("backend.php", {
+				parameters: "?op=pref-prefs&method=clearplugindata&name=" + param_escape(name),
+				onComplete: function(transport) {
+					notify('');
+					updatePrefsList();
+				} });
+		}
+	} catch (e) {
+		exception_error("clearPluginData", e);
+	}
+}
diff --git a/schema/ttrss_schema_mysql.sql b/schema/ttrss_schema_mysql.sql
index bb8bd102..0b0c587b 100644
--- a/schema/ttrss_schema_mysql.sql
+++ b/schema/ttrss_schema_mysql.sql
@@ -1,6 +1,7 @@
 SET NAMES utf8;
 SET CHARACTER SET utf8;
 
+drop table if exists ttrss_plugin_storage;
 drop table if exists ttrss_linked_feeds;
 drop table if exists ttrss_linked_instances;
 drop table if exists ttrss_access_keys;
@@ -528,4 +529,12 @@ create table ttrss_linked_feeds (
 	subscribers integer not null,
  	foreign key (instance_id) references ttrss_linked_instances(id) ON DELETE CASCADE) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
 
+create table ttrss_plugin_storage (
+	id integer not null auto_increment primary key,
+	name varchar(100) not null,
+	owner_uid integer not null,
+	content longtext not null,
+  	foreign key (owner_uid) references ttrss_users(id) ON DELETE CASCADE) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
+
+
 commit;
diff --git a/schema/ttrss_schema_pgsql.sql b/schema/ttrss_schema_pgsql.sql
index 3c508bb3..f52d4191 100644
--- a/schema/ttrss_schema_pgsql.sql
+++ b/schema/ttrss_schema_pgsql.sql
@@ -1,3 +1,4 @@
+drop table if exists ttrss_plugin_storage;
 drop table if exists ttrss_linked_feeds;
 drop table if exists ttrss_linked_instances;
 drop table if exists ttrss_access_keys;
@@ -256,7 +257,7 @@ create index ttrss_tags_post_int_id_idx on ttrss_tags(post_int_id);
 
 create table ttrss_version (schema_version int not null);
 
-insert into ttrss_version values (100);
+insert into ttrss_version values (101);
 
 create table ttrss_enclosures (id serial not null primary key,
 	content_url text not null,
@@ -461,4 +462,10 @@ create table ttrss_linked_feeds (
 	instance_id integer not null references ttrss_linked_instances(id) ON DELETE CASCADE,
 	subscribers integer not null);
 
+create table ttrss_plugin_storage (
+	id serial not null primary key,
+	name varchar(100) not null,
+	owner_uid integer not null references ttrss_users(id) ON DELETE CASCADE,
+	content text not null);
+
 commit;
diff --git a/schema/versions/mysql/101.sql b/schema/versions/mysql/101.sql
new file mode 100644
index 00000000..47ff2652
--- /dev/null
+++ b/schema/versions/mysql/101.sql
@@ -0,0 +1,12 @@
+begin;
+
+create table ttrss_plugin_storage (
+	id integer not null auto_increment primary key,
+	name varchar(100) not null,
+	owner_uid integer not null,
+	content longtext not null,
+  	foreign key (owner_uid) references ttrss_users(id) ON DELETE CASCADE) ENGINE=InnoDB DEFAULT CHARSET=UTF8;
+
+update ttrss_version set schema_version = 101;
+
+commit;
diff --git a/schema/versions/pgsql/101.sql b/schema/versions/pgsql/101.sql
new file mode 100644
index 00000000..5be85900
--- /dev/null
+++ b/schema/versions/pgsql/101.sql
@@ -0,0 +1,11 @@
+begin;
+
+create table ttrss_plugin_storage (
+	id serial not null primary key,
+	name varchar(100) not null,
+	owner_uid integer not null references ttrss_users(id) ON DELETE CASCADE,
+	content text not null);
+
+update ttrss_version set schema_version = 101;
+
+commit;