diff --git a/advancedcontentfilter/advancedcontentfilter.php b/advancedcontentfilter/advancedcontentfilter.php
index d7af3eee..bd97b309 100644
--- a/advancedcontentfilter/advancedcontentfilter.php
+++ b/advancedcontentfilter/advancedcontentfilter.php
@@ -45,6 +45,7 @@ use Friendica\DI;
 use Friendica\Model\Item;
 use Friendica\Model\Post;
 use Friendica\Model\Tag;
+use Friendica\Model\User;
 use Friendica\Module\Security\Login;
 use Friendica\Network\HTTPException;
 use Friendica\Util\DateTimeFormat;
@@ -200,7 +201,9 @@ function advancedcontentfilter_content(App $a)
 	}
 
 	if (DI::args()->getArgc() > 1 && DI::args()->getArgv()[1] == 'help') {
-		$lang = $a->user['language'];
+		$user = User::getById(local_user());
+
+		$lang = $user['language'];
 
 		$default_dir = 'addon/advancedcontentfilter/doc/';
 		$help_file = 'advancedcontentfilter.md';
diff --git a/ifttt/ifttt.php b/ifttt/ifttt.php
index fced70d6..2b1bdd79 100644
--- a/ifttt/ifttt.php
+++ b/ifttt/ifttt.php
@@ -57,7 +57,7 @@ function ifttt_settings(App $a, &$s)
 	$s .= '<div id="ifttt-configuration-wrapper">';
 	$s .= '<p>' . DI::l10n()->t('Create an account at <a href="http://www.ifttt.com">IFTTT</a>. Create three Facebook recipes that are connected with <a href="https://ifttt.com/maker">Maker</a> (In the form "if Facebook then Maker") with the following parameters:') . '</p>';
 	$s .= '<h4>URL</h4>';
-	$s .= '<p>' . DI::baseUrl()->get() . '/ifttt/' . $a->user['nickname'] . '</p>';
+	$s .= '<p>' . DI::baseUrl()->get() . '/ifttt/' . $a->getLoggedInUserNickname() . '</p>';
 	$s .= '<h4>Method</h4>';
 	$s .= '<p>POST</p>';
 	$s .= '<h4>Content Type</h4>';
diff --git a/jappixmini/jappixmini.php b/jappixmini/jappixmini.php
index 0333d8ec..0e0abfc8 100644
--- a/jappixmini/jappixmini.php
+++ b/jappixmini/jappixmini.php
@@ -283,7 +283,7 @@ function jappixmini_settings(App $a, &$s)
 	}
 
 	if (($username == "") && DI::config()->get("jappixmini", "default_user")) {
-		$username = $a->user["nickname"];
+		$username = $a->getLoggedInUserNickname();
 	}
 
 	$info_text = DI::config()->get("jappixmini", "infotext");
diff --git a/langfilter/langfilter.php b/langfilter/langfilter.php
index 0cf3e552..aeb53eeb 100644
--- a/langfilter/langfilter.php
+++ b/langfilter/langfilter.php
@@ -105,7 +105,7 @@ function langfilter_prepare_body_content_filter(App $a, &$hook_data)
 
 	// Never filter own messages
 	// TODO: find a better way to extract this
-	$logged_user_profile = DI::baseUrl()->get() . '/profile/' . $a->user['nickname'];
+	$logged_user_profile = DI::baseUrl()->get() . '/profile/' . $a->getLoggedInUserNickname();
 	if ($logged_user_profile == $hook_data['item']['author-link']) {
 		return;
 	}
diff --git a/opmlexport/opmlexport.php b/opmlexport/opmlexport.php
index ca65cbaa..5d613941 100644
--- a/opmlexport/opmlexport.php
+++ b/opmlexport/opmlexport.php
@@ -16,6 +16,7 @@ use Friendica\Database\DBA;
 use Friendica\Core\Renderer;
 use Friendica\Core\Protocol;
 use Friendica\Model\Contact;
+use Friendica\Model\User;
 
 function opmlexport_install()
 {
@@ -37,14 +38,15 @@ function opmlexport(App $a)
 		'network' => Protocol::FEED
 	];
 	$data = Contact::selectToArray([], $condition, ['order' => ['name']]);
+	$user = User::getById(local_user());
 
 	$xml = new \DOMDocument( '1.0', 'utf-8' );
 	$opml = $xml->createElement('opml');
 	$head = $xml->createElement('head');
 	$body = $xml->createElement('body');
 	$outline = $xml->createElement('outline');
-	$outline->setAttribute('title', $a->user['username'] . '\'s RSS/Atom contacts');
-	$outline->setAttribute('text', $a->user['username'] . '\'s RSS/Atom contacts');
+	$outline->setAttribute('title', $user['username'] . '\'s RSS/Atom contacts');
+	$outline->setAttribute('text', $user['username'] . '\'s RSS/Atom contacts');
 
 	foreach($data as $c) {
 		$entry = $xml->createElement('outline');
diff --git a/securemail/SecureTestEmail.php b/securemail/SecureTestEmail.php
index 8341f545..b3abcd50 100644
--- a/securemail/SecureTestEmail.php
+++ b/securemail/SecureTestEmail.php
@@ -25,6 +25,7 @@ use Friendica\App;
 use Friendica\App\BaseURL;
 use Friendica\Core\Config\IConfig;
 use Friendica\Core\PConfig\IPConfig;
+use Friendica\Model\User;
 use Friendica\Object\Email;
 
 /**
@@ -46,13 +47,15 @@ class SecureTestEmail extends Email
 			$sender_email = 'noreply@' . $hostname;
 		}
 
+		$user = User::getById(local_user());
+
 		$subject = 'Friendica - Secure Mail - Test';
 		$message = 'This is a test message from your Friendica Secure Mail addon.';
 
 		// enable addon for test
 		$pConfig->set(local_user(), 'securemail', 'enable', 1);
 
-		parent::__construct($sitename, $sender_email, $sender_email, $a->user['email'],
+		parent::__construct($sitename, $sender_email, $sender_email, $user['email'],
 			$subject, "<p>{$message}</p>", $message,
 			[], local_user());
 	}
diff --git a/statusnet/statusnet.php b/statusnet/statusnet.php
index 6f4c3e20..1a3ba1f9 100644
--- a/statusnet/statusnet.php
+++ b/statusnet/statusnet.php
@@ -216,6 +216,9 @@ function statusnet_settings(App $a, &$s)
 	if (!local_user()) {
 		return;
 	}
+
+	$user = User::getById(local_user());
+
 	DI::page()['htmlhead'] .= '<link rel="stylesheet"  type="text/css" href="' . DI::baseUrl()->get() . '/addon/statusnet/statusnet.css' . '" media="all" />' . "\r\n";
 	/*	 * *
 	 * 1) Check that we have a base api url and a consumer key & secret
@@ -334,7 +337,7 @@ function statusnet_settings(App $a, &$s)
 				$s .= '<div id="statusnet-info" ><img id="statusnet-avatar" src="' . $details->profile_image_url . '" /><p id="statusnet-info-block">' . DI::l10n()->t('Currently connected to: ') . '<a href="' . $details->statusnet_profile_url . '" target="_statusnet">' . $details->screen_name . '</a><br /><em>' . $details->description . '</em></p></div>';
 			}
 			$s .= '<p>' . DI::l10n()->t('If enabled all your <strong>public</strong> postings can be posted to the associated GNU Social account. You can choose to do so by default (here) or for every posting separately in the posting options when writing the entry.') . '</p>';
-			if ($a->user['hidewall']) {
+			if ($user['hidewall']) {
 				$s .= '<p>' . DI::l10n()->t('<strong>Note</strong>: Due your privacy settings (<em>Hide your profile details from unknown viewers?</em>) the link potentially included in public postings relayed to GNU Social will lead the visitor to a blank page informing the visitor that the access to your profile has been restricted.') . '</p>';
 			}
 			$s .= '<div id="statusnet-enable-wrapper">';
diff --git a/twitter/twitter.php b/twitter/twitter.php
index b3527d32..0cf5637e 100644
--- a/twitter/twitter.php
+++ b/twitter/twitter.php
@@ -146,7 +146,7 @@ function twitter_follow(App $a, array &$contact)
 	$nickname = preg_replace("=https?://twitter.com/(.*)=ism", "$1", $contact["url"]);
 	$nickname = str_replace("@twitter.com", "", $nickname);
 
-	$uid = $a->user["uid"];
+	$uid = $a->getLoggedInUserId();
 
 	$ckey = DI::config()->get('twitter', 'consumerkey');
 	$csecret = DI::config()->get('twitter', 'consumersecret');
@@ -266,6 +266,9 @@ function twitter_settings(App $a, &$s)
 	if (!local_user()) {
 		return;
 	}
+
+	$user = User::getById(local_user());
+
 	DI::page()['htmlhead'] .= '<link rel="stylesheet"  type="text/css" href="' . DI::baseUrl()->get() . '/addon/twitter/twitter.css' . '" media="all" />' . "\r\n";
 	/*	 * *
 	 * 1) Check that we have global consumer key & secret
@@ -356,7 +359,7 @@ function twitter_settings(App $a, &$s)
 				$s .= Renderer::replaceMacros($field_checkbox, [
 					'$field' => ['twitter-enable', DI::l10n()->t('Allow posting to Twitter'), $enabled, DI::l10n()->t('If enabled all your <strong>public</strong> postings can be posted to the associated Twitter account. You can choose to do so by default (here) or for every posting separately in the posting options when writing the entry.')]
 				]);
-				if ($a->user['hidewall']) {
+				if ($user['hidewall']) {
 					$s .= '<p>' . DI::l10n()->t('<strong>Note</strong>: Due to your privacy settings (<em>Hide your profile details from unknown viewers?</em>) the link potentially included in public postings relayed to Twitter will lead the visitor to a blank page informing the visitor that the access to your profile has been restricted.') . '</p>';
 				}
 				$s .= Renderer::replaceMacros($field_checkbox, [
diff --git a/windowsphonepush/windowsphonepush.php b/windowsphonepush/windowsphonepush.php
index c5ff6965..ca2dd358 100644
--- a/windowsphonepush/windowsphonepush.php
+++ b/windowsphonepush/windowsphonepush.php
@@ -460,5 +460,5 @@ function windowsphonepush_login(App $a)
 
 	DI::auth()->setForUser($a, $record);
 	DI::session()->set('allow_api', true);
-	Hook::callAll('logged_in', $a->user);
+	Hook::callAll('logged_in', $record);
 }
diff --git a/xmpp/xmpp.php b/xmpp/xmpp.php
index 392dbe0e..2f359a7e 100644
--- a/xmpp/xmpp.php
+++ b/xmpp/xmpp.php
@@ -153,7 +153,7 @@ function xmpp_converse(App $a)
 			DI::pConfig()->set(local_user(), "xmpp", "password", $password);
 		}
 
-		$jid = $a->user["nickname"] . "@" . DI::baseUrl()->getHostname() . "/converse-" . Strings::getRandomHex(5);
+		$jid = $a->getLoggedInUserNickname() . "@" . DI::baseUrl()->getHostname() . "/converse-" . Strings::getRandomHex(5);
 
 		$auto_login = "auto_login: true,
 			authentication: 'login',