diff --git a/buffer/buffer.php b/buffer/buffer.php
index 0f43a0ece..c7f3cd35d 100644
--- a/buffer/buffer.php
+++ b/buffer/buffer.php
@@ -15,6 +15,7 @@ use Friendica\Core\L10n;
 use Friendica\Core\PConfig;
 use Friendica\Database\DBA;
 use Friendica\Model\ItemContent;
+use Friendica\Util\Proxy as ProxyUtils;
 
 function buffer_install()
 {
@@ -363,14 +364,12 @@ function buffer_send(App $a, array &$b)
 				logger("buffer_send: converted message ".$b["id"]." result: ".print_r($post, true), LOGGER_DEBUG);
 
 				// The image proxy is used as a sanitizer. Buffer seems to be really picky about pictures
-				require_once "mod/proxy.php";
-
 				if (isset($post["image"])) {
-					$post["image"] = proxy_url($post["image"]);
+					$post["image"] = ProxyUtils::proxifyUrl($post["image"]);
 				}
 
 				if (isset($post["preview"])) {
-					$post["preview"] = proxy_url($post["preview"]);
+					$post["preview"] = ProxyUtils::proxifyUrl($post["preview"]);
 				}
 
 				// Seems like a bug to me
diff --git a/curweather/curweather.php b/curweather/curweather.php
index 6852ee70f..044f5a154 100644
--- a/curweather/curweather.php
+++ b/curweather/curweather.php
@@ -9,7 +9,6 @@
  *
  */
 
-require_once 'mod/proxy.php';
 require_once 'include/text.php';
 
 use Friendica\App;
@@ -19,6 +18,7 @@ use Friendica\Core\Config;
 use Friendica\Core\L10n;
 use Friendica\Core\PConfig;
 use Friendica\Util\Network;
+use Friendica\Util\Proxy as ProxyUtils;
 
 function curweather_install()
 {
@@ -138,7 +138,7 @@ function curweather_network_mod_init(App $a, &$b)
 		$t = get_markup_template("widget.tpl", "addon/curweather/" );
 		$curweather = replace_macros ($t, [
 			'$title' => L10n::t("Current Weather"),
-			'$icon' => proxy_url('http://openweathermap.org/img/w/'.$res['icon'].'.png'),
+			'$icon' => ProxyUtils::proxifyUrl('http://openweathermap.org/img/w/'.$res['icon'].'.png'),
 			'$city' => $res['city'],
 			'$lon' => $res['lon'],
 			'$lat' => $res['lat'],
diff --git a/impressum/impressum.php b/impressum/impressum.php
index 149b13954..b7cf64e40 100644
--- a/impressum/impressum.php
+++ b/impressum/impressum.php
@@ -7,12 +7,11 @@
  * License: 3-clause BSD license
  */
 
-require_once 'mod/proxy.php';
-
 use Friendica\Content\Text\BBCode;
 use Friendica\Core\Addon;
 use Friendica\Core\Config;
 use Friendica\Core\L10n;
+use Friendica\Util\Proxy as ProxyUtils;
 
 function impressum_install() {
 	Addon::registerHook('load_config', 'addon/impressum/impressum.php', 'impressum_load_config');
@@ -41,7 +40,8 @@ function obfuscate_email ($s) {
     return $s;
 }
 function impressum_footer($a, &$b) {
-    $text = proxy_parse_html(BBCode::convert(Config::get('impressum','footer_text')));
+    $text = ProxyUtils::proxifyHtml(BBCode::convert(Config::get('impressum','footer_text')));
+
     if (! $text == '') {
         $a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="'.$a->get_baseurl().'/addon/impressum/impressum.css" media="all" />';
         $b .= '<div class="clear"></div>';
@@ -58,8 +58,8 @@ function impressum_show($a,&$b) {
     $b .= '<h3>'.L10n::t('Impressum').'</h3>';
     $owner = Config::get('impressum', 'owner');
     $owner_profile = Config::get('impressum','ownerprofile');
-    $postal = proxy_parse_html(BBCode::convert(Config::get('impressum', 'postal')));
-    $notes = proxy_parse_html(BBCode::convert(Config::get('impressum', 'notes')));
+    $postal = ProxyUtils::proxifyHtml(BBCode::convert(Config::get('impressum', 'postal')));
+    $notes = ProxyUtils::proxifyHtml(BBCode::convert(Config::get('impressum', 'notes')));
     $email = obfuscate_email( Config::get('impressum','email') );
     if (strlen($owner)) {
         if (strlen($owner_profile)) {
diff --git a/mastodoncustomemojis/mastodoncustomemojis.php b/mastodoncustomemojis/mastodoncustomemojis.php
index 93d0ba65a..2502344af 100644
--- a/mastodoncustomemojis/mastodoncustomemojis.php
+++ b/mastodoncustomemojis/mastodoncustomemojis.php
@@ -15,6 +15,7 @@ use Friendica\Core\Cache;
 use Friendica\Core\Config;
 use Friendica\Core\Protocol;
 use Friendica\Util\Network;
+use Friendica\Util\Proxy as ProxyUtils;
 
 function mastodoncustomemojis_install()
 {
@@ -88,7 +89,7 @@ function mastodoncustomemojis_get_custom_emojis_for_author($author_link)
 			if (is_array($emojis_array)) {
 				foreach ($emojis_array as $emoji) {
 					$emojis['texts'][] = ':' . $emoji['shortcode'] . ':';
-					$emojis['icons'][] = '<img class="emoji mastodon" src="' . proxy_url($emoji['static_url']) . '" alt=":' . $emoji['shortcode'] . ':" title=":' . $emoji['shortcode'] . ':"/>';
+					$emojis['icons'][] = '<img class="emoji mastodon" src="' . ProxyUtils::proxifyUrl($emoji['static_url']) . '" alt=":' . $emoji['shortcode'] . ':" title=":' . $emoji['shortcode'] . ':"/>';
 				}
 			}