diff --git a/mod/contactgroup.php b/mod/contactgroup.php
deleted file mode 100644
index 07997cd11..000000000
--- a/mod/contactgroup.php
+++ /dev/null
@@ -1,53 +0,0 @@
-<?php
-
-use Friendica\App;
-use Friendica\Database\DBA;
-use Friendica\Model\Contact;
-use Friendica\Model\Group;
-
-function contactgroup_content(App $a)
-{
-	if (!local_user()) {
-		exit();
-	}
-
-	$change = null;
-	if (($a->argc > 2) && intval($a->argv[1]) && intval($a->argv[2])) {
-		$r = q("SELECT `id` FROM `contact` WHERE `id` = %d AND `uid` = %d and `self` = 0 and `blocked` = 0 AND `pending` = 0 LIMIT 1",
-			intval($a->argv[2]),
-			intval(local_user())
-		);
-		if (DBA::isResult($r)) {
-			$change = intval($a->argv[2]);
-		}
-	}
-
-	if (($a->argc > 1) && (intval($a->argv[1]))) {
-		$r = q("SELECT * FROM `group` WHERE `id` = %d AND `uid` = %d AND `deleted` = 0 LIMIT 1",
-			intval($a->argv[1]),
-			intval(local_user())
-		);
-		if (!DBA::isResult($r)) {
-			exit();
-		}
-
-		$group = $r[0];
-		$members = Contact::getByGroupId($group['id']);
-		$preselected = [];
-		if (count($members)) {
-			foreach ($members as $member) {
-				$preselected[] = $member['id'];
-			}
-		}
-
-		if (!empty($change)) {
-			if (in_array($change, $preselected)) {
-				Group::removeMember($group['id'], $change);
-			} else {
-				Group::addMember($group['id'], $change);
-			}
-		}
-	}
-
-	exit();
-}
diff --git a/mod/group.php b/mod/group.php
deleted file mode 100644
index a6f649bf3..000000000
--- a/mod/group.php
+++ /dev/null
@@ -1,313 +0,0 @@
-<?php
-/**
- * @file mod/group.php
- * @brief The group module (create and rename contact groups, add and
- *	remove contacts to the contact groups
- */
-
-use Friendica\App;
-use Friendica\BaseModule;
-use Friendica\Core\Config;
-use Friendica\Core\L10n;
-use Friendica\Core\PConfig;
-use Friendica\Core\Renderer;
-use Friendica\Database\DBA;
-use Friendica\Model;
-use Friendica\Module;
-use Friendica\Util\Strings;
-
-function group_init(App $a) {
-	if (local_user()) {
-		$a->page['aside'] = Model\Group::sidebarWidget('contact', 'group', 'extended', (($a->argc > 1) ? $a->argv[1] : 'everyone'));
-	}
-}
-
-function group_post(App $a) {
-
-	if (!local_user()) {
-		notice(L10n::t('Permission denied.') . EOL);
-		return;
-	}
-
-	if (($a->argc == 2) && ($a->argv[1] === 'new')) {
-		BaseModule::checkFormSecurityTokenRedirectOnError('/group/new', 'group_edit');
-
-		$name = Strings::escapeTags(trim($_POST['groupname']));
-		$r = Model\Group::create(local_user(), $name);
-		if ($r) {
-			info(L10n::t('Group created.') . EOL);
-			$r = Model\Group::getIdByName(local_user(), $name);
-			if ($r) {
-				$a->internalRedirect('group/' . $r);
-			}
-		} else {
-			notice(L10n::t('Could not create group.') . EOL);
-		}
-		$a->internalRedirect('group');
-		return; // NOTREACHED
-	}
-
-	if (($a->argc == 2) && intval($a->argv[1])) {
-		BaseModule::checkFormSecurityTokenRedirectOnError('/group', 'group_edit');
-
-		$r = q("SELECT * FROM `group` WHERE `id` = %d AND `uid` = %d LIMIT 1",
-			intval($a->argv[1]),
-			intval(local_user())
-		);
-		if (!DBA::isResult($r)) {
-			notice(L10n::t('Group not found.') . EOL);
-			$a->internalRedirect('contact');
-			return; // NOTREACHED
-		}
-		$group = $r[0];
-		$groupname = Strings::escapeTags(trim($_POST['groupname']));
-		if (strlen($groupname) && ($groupname != $group['name'])) {
-			$r = q("UPDATE `group` SET `name` = '%s' WHERE `uid` = %d AND `id` = %d",
-				DBA::escape($groupname),
-				intval(local_user()),
-				intval($group['id'])
-			);
-
-			if ($r) {
-				info(L10n::t('Group name changed.') . EOL);
-			}
-		}
-
-		$a->page['aside'] = Model\Group::sidebarWidget();
-	}
-	return;
-}
-
-function group_content(App $a) {
-	$change = false;
-
-	if (!local_user()) {
-		notice(L10n::t('Permission denied') . EOL);
-		return;
-	}
-
-	// With no group number provided we jump to the unassigned contacts as a starting point
-	if ($a->argc == 1) {
-		$a->internalRedirect('group/none');
-	}
-
-	// Switch to text mode interface if we have more than 'n' contacts or group members
-	$switchtotext = PConfig::get(local_user(), 'system', 'groupedit_image_limit');
-	if (is_null($switchtotext)) {
-		$switchtotext = Config::get('system', 'groupedit_image_limit', 400);
-	}
-
-	$tpl = Renderer::getMarkupTemplate('group_edit.tpl');
-
-	$context = [
-		'$submit' => L10n::t('Save Group'),
-		'$submit_filter' => L10n::t('Filter'),
-	];
-
-	if (($a->argc == 2) && ($a->argv[1] === 'new')) {
-		return Renderer::replaceMacros($tpl, $context + [
-			'$title' => L10n::t('Create a group of contacts/friends.'),
-			'$gname' => ['groupname', L10n::t('Group Name: '), '', ''],
-			'$gid' => 'new',
-			'$form_security_token' => BaseModule::getFormSecurityToken("group_edit"),
-		]);
-
-
-	}
-
-	$nogroup = false;
-
-	if (($a->argc == 2) && ($a->argv[1] === 'none')) {
-		$id = -1;
-		$nogroup = true;
-		$group = [
-			'id' => $id,
-			'name' => L10n::t('Contacts not in any group'),
-		];
-
-		$members = [];
-		$preselected = [];
-
-		$context = $context + [
-			'$title' => $group['name'],
-			'$gname' => ['groupname', L10n::t('Group Name: '), $group['name'], ''],
-			'$gid' => $id,
-			'$editable' => 0,
-		];
-	}
-
-
-	if (($a->argc == 3) && ($a->argv[1] === 'drop')) {
-		BaseModule::checkFormSecurityTokenRedirectOnError('/group', 'group_drop', 't');
-
-		if (intval($a->argv[2])) {
-			$r = q("SELECT `name` FROM `group` WHERE `id` = %d AND `uid` = %d LIMIT 1",
-				intval($a->argv[2]),
-				intval(local_user())
-			);
-
-			$result = null;
-
-			if (DBA::isResult($r)) {
-				$result = Model\Group::removeByName(local_user(), $r[0]['name']);
-			}
-
-			if ($result) {
-				info(L10n::t('Group removed.') . EOL);
-			} else {
-				notice(L10n::t('Unable to remove group.') . EOL);
-			}
-		}
-		$a->internalRedirect('group');
-		// NOTREACHED
-	}
-
-	if (($a->argc > 2) && intval($a->argv[1]) && intval($a->argv[2])) {
-		BaseModule::checkFormSecurityTokenForbiddenOnError('group_member_change', 't');
-
-		$r = q("SELECT `id` FROM `contact` WHERE `id` = %d AND `uid` = %d and `self` = 0 and `blocked` = 0 AND `pending` = 0 LIMIT 1",
-			intval($a->argv[2]),
-			intval(local_user())
-		);
-		if (DBA::isResult($r)) {
-			$change = intval($a->argv[2]);
-		}
-	}
-
-	if (($a->argc > 1) && intval($a->argv[1])) {
-		$r = q("SELECT * FROM `group` WHERE `id` = %d AND `uid` = %d AND `deleted` = 0 LIMIT 1",
-			intval($a->argv[1]),
-			intval(local_user())
-		);
-
-		if (!DBA::isResult($r)) {
-			notice(L10n::t('Group not found.') . EOL);
-			$a->internalRedirect('contact');
-		}
-
-		$group = $r[0];
-		$members = Model\Contact::getByGroupId($group['id']);
-		$preselected = [];
-
-		if (count($members)) {
-			foreach ($members as $member) {
-				$preselected[] = $member['id'];
-			}
-		}
-
-		if ($change) {
-			if (in_array($change, $preselected)) {
-				Model\Group::removeMember($group['id'], $change);
-			} else {
-				Model\Group::addMember($group['id'], $change);
-			}
-
-			$members = Model\Contact::getByGroupId($group['id']);
-			$preselected = [];
-			if (count($members)) {
-				foreach ($members as $member) {
-					$preselected[] = $member['id'];
-				}
-			}
-		}
-
-		$drop_tpl = Renderer::getMarkupTemplate('group_drop.tpl');
-		$drop_txt = Renderer::replaceMacros($drop_tpl, [
-			'$id' => $group['id'],
-			'$delete' => L10n::t('Delete Group'),
-			'$form_security_token' => BaseModule::getFormSecurityToken("group_drop"),
-		]);
-
-
-		$context = $context + [
-			'$title' => $group['name'],
-			'$gname' => ['groupname', L10n::t('Group Name: '), $group['name'], ''],
-			'$gid' => $group['id'],
-			'$drop' => $drop_txt,
-			'$form_security_token' => BaseModule::getFormSecurityToken('group_edit'),
-			'$edit_name' => L10n::t('Edit Group Name'),
-			'$editable' => 1,
-		];
-
-	}
-
-	if (!isset($group)) {
-		return;
-	}
-
-	$groupeditor = [
-		'label_members' => L10n::t('Members'),
-		'members' => [],
-		'label_contacts' => L10n::t('All Contacts'),
-		'group_is_empty' => L10n::t('Group is empty'),
-		'contacts' => [],
-	];
-
-	$sec_token = addslashes(BaseModule::getFormSecurityToken('group_member_change'));
-
-	// Format the data of the group members
-	foreach ($members as $member) {
-		if ($member['url']) {
-			$entry = Module\Contact::getContactTemplateVars($member);
-			$entry['label'] = 'members';
-			$entry['photo_menu'] = '';
-			$entry['change_member'] = [
-				'title'     => L10n::t("Remove contact from group"),
-				'gid'       => $group['id'],
-				'cid'       => $member['id'],
-				'sec_token' => $sec_token
-			];
-
-			$groupeditor['members'][] = $entry;
-		} else {
-			Model\Group::removeMember($group['id'], $member['id']);
-		}
-	}
-
-	if ($nogroup) {
-		$r = Model\Contact::getUngroupedList(local_user());
-	} else {
-		$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND NOT `blocked` AND NOT `pending` AND NOT `self` ORDER BY `name` ASC",
-			intval(local_user())
-		);
-		$context['$desc'] = L10n::t('Click on a contact to add or remove.');
-	}
-
-	if (DBA::isResult($r)) {
-		// Format the data of the contacts who aren't in the contact group
-		foreach ($r as $member) {
-			if (!in_array($member['id'], $preselected)) {
-				$entry = Module\Contact::getContactTemplateVars($member);
-				$entry['label'] = 'contacts';
-				if (!$nogroup)
-					$entry['photo_menu'] = [];
-
-				if (!$nogroup) {
-					$entry['change_member'] = [
-						'title'     => L10n::t("Add contact to group"),
-						'gid'       => $group['id'],
-						'cid'       => $member['id'],
-						'sec_token' => $sec_token
-					];
-				}
-
-				$groupeditor['contacts'][] = $entry;
-			}
-		}
-	}
-
-	$context['$groupeditor'] = $groupeditor;
-
-	// If there are to many contacts we could provide an alternative view mode
-	$total = count($groupeditor['members']) + count($groupeditor['contacts']);
-	$context['$shortmode'] = (($switchtotext && ($total > $switchtotext)) ? true : false);
-
-	if ($change) {
-		$tpl = Renderer::getMarkupTemplate('groupeditor.tpl');
-		echo Renderer::replaceMacros($tpl, $context);
-		exit();
-	}
-
-	return Renderer::replaceMacros($tpl, $context);
-
-}