diff --git a/admin/registration/forms.php b/admin/registration/forms.php
index 8eff8411bb428..5f89d0c0d9b40 100644
--- a/admin/registration/forms.php
+++ b/admin/registration/forms.php
@@ -329,6 +329,7 @@ public function definition() {
                 array('class' => 'registration_textfield'));
         $mform->setType('contactphone', PARAM_TEXT);
         $mform->addHelpButton('contactphone', 'sitephone', 'hub');
+        $mform->setForceLtr('contactphone');
 
         $mform->addElement('text', 'contactemail', get_string('siteemail', 'hub'),
                 array('class' => 'registration_textfield'));
diff --git a/admin/tool/uploaduser/user_form.php b/admin/tool/uploaduser/user_form.php
index dfd212372cd17..29cfec03e978e 100644
--- a/admin/tool/uploaduser/user_form.php
+++ b/admin/tool/uploaduser/user_form.php
@@ -211,11 +211,13 @@ function definition () {
         $mform->addRule('username', get_string('requiredtemplate', 'tool_uploaduser'), 'required', null, 'client');
         $mform->disabledIf('username', 'uutype', 'eq', UU_USER_ADD_UPDATE);
         $mform->disabledIf('username', 'uutype', 'eq', UU_USER_UPDATE);
+        $mform->setForceLtr('username');
 
         $mform->addElement('text', 'email', get_string('email'), 'maxlength="100" size="30"');
         $mform->setType('email', PARAM_RAW); // No cleaning here. The process verifies it later.
         $mform->disabledIf('email', 'uutype', 'eq', UU_USER_ADD_UPDATE);
         $mform->disabledIf('email', 'uutype', 'eq', UU_USER_UPDATE);
+        $mform->setForceLtr('email');
 
         // only enabled and known to work plugins
         $choices = uu_supported_auths();
@@ -281,6 +283,7 @@ function definition () {
 
         $mform->addElement('text', 'idnumber', get_string('idnumber'), 'maxlength="255" size="25"');
         $mform->setType('idnumber', PARAM_NOTAGS);
+        $mform->setForceLtr('idnumber');
 
         $mform->addElement('text', 'institution', get_string('institution'), 'maxlength="255" size="25"');
         $mform->setType('institution', PARAM_TEXT);
@@ -293,10 +296,12 @@ function definition () {
         $mform->addElement('text', 'phone1', get_string('phone1'), 'maxlength="20" size="25"');
         $mform->setType('phone1', PARAM_NOTAGS);
         $mform->setAdvanced('phone1');
+        $mform->setForceLtr('phone1');
 
         $mform->addElement('text', 'phone2', get_string('phone2'), 'maxlength="20" size="25"');
         $mform->setType('phone2', PARAM_NOTAGS);
         $mform->setAdvanced('phone2');
+        $mform->setForceLtr('phone2');
 
         $mform->addElement('text', 'address', get_string('address'), 'maxlength="255" size="25"');
         $mform->setType('address', PARAM_TEXT);
diff --git a/cache/stores/memcache/addinstanceform.php b/cache/stores/memcache/addinstanceform.php
index 5a90f392b6ba7..27135ef3fc2e5 100644
--- a/cache/stores/memcache/addinstanceform.php
+++ b/cache/stores/memcache/addinstanceform.php
@@ -52,6 +52,7 @@ protected function configuration_definition() {
         $form->setType('prefix', PARAM_TEXT); // We set to text but we have a rule to limit to alphanumext.
         $form->setDefault('prefix', 'mdl_');
         $form->addRule('prefix', get_string('prefixinvalid', 'cachestore_memcache'), 'regex', '#^[a-zA-Z0-9\-_]+$#');
+        $form->setForceLtr('prefix');
 
         $form->addElement('header', 'clusteredheader', get_string('clustered', 'cachestore_memcache'));
 
diff --git a/cache/stores/memcached/addinstanceform.php b/cache/stores/memcached/addinstanceform.php
index 004063aedd44b..d455b397562dc 100644
--- a/cache/stores/memcached/addinstanceform.php
+++ b/cache/stores/memcached/addinstanceform.php
@@ -73,6 +73,7 @@ protected function configuration_definition() {
         $form->setType('prefix', PARAM_TEXT); // We set to text but we have a rule to limit to alphanumext.
         $form->addHelpButton('prefix', 'prefix', 'cachestore_memcached');
         $form->addRule('prefix', get_string('prefixinvalid', 'cachestore_memcached'), 'regex', '#^[a-zA-Z0-9\-_]+$#');
+        $form->setForceLtr('prefix');
 
         $hashoptions = cachestore_memcached::config_get_hash_options();
         $form->addElement('select', 'hash', get_string('hash', 'cachestore_memcached'), $hashoptions);
diff --git a/calendar/managesubscriptions_form.php b/calendar/managesubscriptions_form.php
index 769a5b5408ca0..12ab3ac5b740e 100644
--- a/calendar/managesubscriptions_form.php
+++ b/calendar/managesubscriptions_form.php
@@ -60,6 +60,7 @@ public function definition() {
         $mform->addElement('text', 'url', get_string('importfromurl', 'calendar'), array('maxsize' => '255', 'size' => '50'));
         // Cannot set as PARAM_URL since we need to allow webcal:// protocol.
         $mform->setType('url', PARAM_RAW);
+        $mform->setForceLtr('url');
 
         // Poll interval
         $choices = calendar_get_pollinterval_choices();
diff --git a/grade/edit/tree/calculation_form.php b/grade/edit/tree/calculation_form.php
index fc5e08809d3f9..e6491995f74f0 100644
--- a/grade/edit/tree/calculation_form.php
+++ b/grade/edit/tree/calculation_form.php
@@ -59,6 +59,7 @@ function definition() {
         $mform->addElement('static', 'itemname', get_string('itemname', 'grades'));
         $mform->addElement('textarea', 'calculation', get_string('calculation', 'grades'), 'cols="60" rows="5"');
         $mform->addHelpButton('calculation', 'calculation', 'grades');
+        $mform->setForceLtr('calculation');
 
 /// hidden params
         $mform->addElement('hidden', 'id', 0);
diff --git a/install.php b/install.php
index 4bdcf4113b4cd..5d1e8fcd8355b 100644
--- a/install.php
+++ b/install.php
@@ -435,34 +435,34 @@
 
     $disabled = empty($distro->dbhost) ? '' : 'disabled="disabled';
     echo '<div class="fitem"><div class="fitemtitle"><label for="id_dbhost">'.$strdbhost.'</label></div>';
-    echo '<div class="fitemelement"><input id="id_dbhost" name="dbhost" '.$disabled.' type="text" value="'.s($config->dbhost).'" size="50" /></div>';
+    echo '<div class="fitemelement"><input id="id_dbhost" name="dbhost" '.$disabled.' type="text" class="text-ltr" value="'.s($config->dbhost).'" size="50" /></div>';
     echo '</div>';
 
     echo '<div class="fitem"><div class="fitemtitle"><label for="id_dbname">'.$strdbname.'</label></div>';
-    echo '<div class="fitemelement"><input id="id_dbname" name="dbname" type="text" value="'.s($config->dbname).'" size="50" /></div>';
+    echo '<div class="fitemelement"><input id="id_dbname" name="dbname" type="text" class="text-ltr" value="'.s($config->dbname).'" size="50" /></div>';
     echo '</div>';
 
     $disabled = empty($distro->dbuser) ? '' : 'disabled="disabled';
     echo '<div class="fitem"><div class="fitemtitle"><label for="id_dbuser">'.$strdbuser.'</label></div>';
-    echo '<div class="fitemelement"><input id="id_dbuser" name="dbuser" '.$disabled.' type="text" value="'.s($config->dbuser).'" size="50" /></div>';
+    echo '<div class="fitemelement"><input id="id_dbuser" name="dbuser" '.$disabled.' type="text" class="text-ltr" value="'.s($config->dbuser).'" size="50" /></div>';
     echo '</div>';
 
     echo '<div class="fitem"><div class="fitemtitle"><label for="id_dbpass">'.$strdbpass.'</label></div>';
     // no password field here, the password may be visible in config.php if we can not write it to disk
-    echo '<div class="fitemelement"><input id="id_dbpass" name="dbpass" type="text" value="'.s($config->dbpass).'" size="50" /></div>';
+    echo '<div class="fitemelement"><input id="id_dbpass" name="dbpass" type="text" class="text-ltr" value="'.s($config->dbpass).'" size="50" /></div>';
     echo '</div>';
 
     echo '<div class="fitem"><div class="fitemtitle"><label for="id_prefix">'.$strprefix.'</label></div>';
-    echo '<div class="fitemelement"><input id="id_prefix" name="prefix" type="text" value="'.s($config->prefix).'" size="10" /></div>';
+    echo '<div class="fitemelement"><input id="id_prefix" name="prefix" type="text" class="text-ltr" value="'.s($config->prefix).'" size="10" /></div>';
     echo '</div>';
 
     echo '<div class="fitem"><div class="fitemtitle"><label for="id_prefix">'.$strdbport.'</label></div>';
-    echo '<div class="fitemelement"><input id="id_dbport" name="dbport" type="text" value="'.s($config->dbport).'" size="10" /></div>';
+    echo '<div class="fitemelement"><input id="id_dbport" name="dbport" type="text" class="text-ltr" value="'.s($config->dbport).'" size="10" /></div>';
     echo '</div>';
 
     if (!(stristr(PHP_OS, 'win') && !stristr(PHP_OS, 'darwin'))) {
         echo '<div class="fitem"><div class="fitemtitle"><label for="id_dbsocket">'.$strdbsocket.'</label></div>';
-        echo '<div class="fitemelement"><input id="id_dbsocket" name="dbsocket" type="text" value="'.s($config->dbsocket).'" size="50" /></div>';
+        echo '<div class="fitemelement"><input id="id_dbsocket" name="dbsocket" type="text" class="text-ltr" value="'.s($config->dbsocket).'" size="50" /></div>';
         echo '</div>';
     }
 
@@ -572,15 +572,15 @@
 
     echo '<div class="userinput">';
     echo '<div class="fitem"><div class="fitemtitle"><label for="id_wwwroot">'.$paths['wwwroot'].'</label></div>';
-    echo '<div class="fitemelement"><input id="id_wwwroot" name="wwwroot" type="text" value="'.s($CFG->wwwroot).'" disabled="disabled" size="70" /></div>';
+    echo '<div class="fitemelement"><input id="id_wwwroot" name="wwwroot" type="text" class="text-ltr" value="'.s($CFG->wwwroot).'" disabled="disabled" size="70" /></div>';
     echo '</div>';
 
     echo '<div class="fitem"><div class="fitemtitle"><label for="id_dirroot">'.$paths['dirroot'].'</label></div>';
-    echo '<div class="fitemelement"><input id="id_dirroot" name="dirroot" type="text" value="'.s($CFG->dirroot).'" disabled="disabled" size="70" /></div>';
+    echo '<div class="fitemelement"><input id="id_dirroot" name="dirroot" type="text" class="text-ltr" value="'.s($CFG->dirroot).'" disabled="disabled" size="70" /></div>';
     echo '</div>';
 
     echo '<div class="fitem"><div class="fitemtitle"><label for="id_dataroot">'.$paths['dataroot'].'</label></div>';
-    echo '<div class="fitemelement"><input id="id_dataroot" name="dataroot" type="text" value="'.s($config->dataroot).'" size="70" /></div>';
+    echo '<div class="fitemelement"><input id="id_dataroot" name="dataroot" type="text" class="text-ltr" value="'.s($config->dataroot).'" size="70" /></div>';
     if ($hint_dataroot !== '') {
         echo '<div class="alert alert-error">'.$hint_dataroot.'</div>';
     }
@@ -589,7 +589,7 @@
 
     if (!file_exists("$CFG->dirroot/admin/environment.xml")) {
         echo '<div class="fitem"><div class="fitemtitle"><label for="id_admin">'.$paths['admindir'].'</label></div>';
-        echo '<div class="fitemelement"><input id="id_admin" name="admin" type="text" value="'.s($config->admin).'" size="10" /></div>';
+        echo '<div class="fitemelement"><input id="id_admin" name="admin" type="text" class="text-ltr" value="'.s($config->admin).'" size="10" /></div>';
         if ($hint_admindir !== '') {
             echo '<div class="alert alert-error">'.$hint_admindir.'</div>';
         }
diff --git a/install/css.php b/install/css.php
index ae6e96daf6fa2..f23e728f27ce1 100644
--- a/install/css.php
+++ b/install/css.php
@@ -47,6 +47,10 @@
     padding: 4px;
 }
 
+.text-ltr {
+    direction: ltr !important;
+}
+
 .headermain {
     margin: 15px;
 }
diff --git a/login/signup_form.php b/login/signup_form.php
index 047efd7e0e75e..9cbee53463c22 100644
--- a/login/signup_form.php
+++ b/login/signup_form.php
@@ -55,10 +55,12 @@ function definition() {
         $mform->addElement('text', 'email', get_string('email'), 'maxlength="100" size="25"');
         $mform->setType('email', core_user::get_property_type('email'));
         $mform->addRule('email', get_string('missingemail'), 'required', null, 'client');
+        $mform->setForceLtr('email');
 
         $mform->addElement('text', 'email2', get_string('emailagain'), 'maxlength="100" size="25"');
         $mform->setType('email2', core_user::get_property_type('email'));
         $mform->addRule('email2', get_string('missingemail'), 'required', null, 'client');
+        $mform->setForceLtr('email2');
 
         $namefields = useredit_get_required_name_fields();
         foreach ($namefields as $field) {
diff --git a/mod/lti/edit_form.php b/mod/lti/edit_form.php
index 754608daa9cbb..b667e2dd010b5 100644
--- a/mod/lti/edit_form.php
+++ b/mod/lti/edit_form.php
@@ -85,6 +85,7 @@ public function definition() {
             $mform->addElement('text', 'lti_resourcekey', get_string('resourcekey_admin', 'lti'));
             $mform->setType('lti_resourcekey', PARAM_TEXT);
             $mform->addHelpButton('lti_resourcekey', 'resourcekey_admin', 'lti');
+            $mform->setForceLtr('lti_resourcekey');
 
             $mform->addElement('passwordunmask', 'lti_password', get_string('password_admin', 'lti'));
             $mform->setType('lti_password', PARAM_TEXT);
@@ -96,11 +97,13 @@ public function definition() {
             $mform->setType('lti_parameters', PARAM_TEXT);
             $mform->addHelpButton('lti_parameters', 'parameter', 'lti');
             $mform->disabledIf('lti_parameters', null);
+            $mform->setForceLtr('lti_parameters');
         }
 
         $mform->addElement('textarea', 'lti_customparameters', get_string('custom', 'lti'), array('rows' => 4, 'cols' => 60));
         $mform->setType('lti_customparameters', PARAM_TEXT);
         $mform->addHelpButton('lti_customparameters', 'custom', 'lti');
+        $mform->setForceLtr('lti_customparameters');
 
         if (!empty($this->_customdata->isadmin)) {
             $options = array(
diff --git a/mod/lti/mod_form.php b/mod/lti/mod_form.php
index 87819d4e728cf..91c55f19713af 100644
--- a/mod/lti/mod_form.php
+++ b/mod/lti/mod_form.php
@@ -158,6 +158,7 @@ public function definition() {
         $mform->setAdvanced('resourcekey');
         $mform->addHelpButton('resourcekey', 'resourcekey', 'lti');
         $mform->disabledIf('resourcekey', 'typeid', 'neq', '0');
+        $mform->setForceLtr('resourcekey');
 
         $mform->addElement('passwordunmask', 'password', get_string('password', 'lti'));
         $mform->setType('password', PARAM_TEXT);
@@ -169,6 +170,7 @@ public function definition() {
         $mform->setType('instructorcustomparameters', PARAM_TEXT);
         $mform->setAdvanced('instructorcustomparameters');
         $mform->addHelpButton('instructorcustomparameters', 'custom', 'lti');
+        $mform->setForceLtr('instructorcustomparameters');
 
         $mform->addElement('text', 'icon', get_string('icon_url', 'lti'), array('size' => '64'));
         $mform->setType('icon', PARAM_URL);
diff --git a/notes/edit_form.php b/notes/edit_form.php
index 5494a5e87ca8a..b124a6314775c 100644
--- a/notes/edit_form.php
+++ b/notes/edit_form.php
@@ -32,6 +32,7 @@ public function definition() {
         $mform->addElement('textarea', 'content', get_string('content', 'notes'), array('rows' => 15, 'cols' => 40));
         $mform->setType('content', PARAM_RAW);
         $mform->addRule('content', get_string('nocontent', 'notes'), 'required', null, 'client');
+        $mform->setForceLtr('content', false);
 
         $mform->addElement('select', 'publishstate', get_string('publishstate', 'notes'), note_get_state_names());
         $mform->setDefault('publishstate', NOTES_STATE_PUBLIC);
diff --git a/theme/bootstrapbase/less/moodle/forms.less b/theme/bootstrapbase/less/moodle/forms.less
index 5a32b472edb34..9d0e8c6a6daca 100644
--- a/theme/bootstrapbase/less/moodle/forms.less
+++ b/theme/bootstrapbase/less/moodle/forms.less
@@ -121,10 +121,7 @@ form {
 .singleselect label {
     margin-right: .3em;
 }
-input#id_externalurl {
-    /*rtl:ignore*/
-    direction: ltr;
-}
+
 #portfolio-add-button {
     display: inline;
 }
@@ -216,18 +213,6 @@ div.backup-section + form,
     color: @textColor;
     text-decoration: none;
 }
-// I think this could be avoided (or at least tidied up) ifr
-// we used HTML5 input types like url, phone, email, number etc.
-/*rtl:ignore*/
-.mform .fitem .felement input[name=email],
-.mform .fitem .felement input[name=email2],
-.mform .fitem .felement input[name=url],
-.mform .fitem .felement input[name=idnumber],
-.mform .fitem .felement input[name=phone1],
-.mform .fitem .felement input[name=phone2] {
-    text-align: left;
-    direction: ltr;
-}
 
 #page-grade-edit-outcome-course .courseoutcomes {
     margin-left: auto;
@@ -237,18 +222,6 @@ div.backup-section + form,
 #page-grade-edit-outcome-course .courseoutcomes td {
     text-align: center;
 }
-/* Install Process' text fields Forms, should always be justified to the left */
-/*rtl:ignore*/
-#installform #id_wwwroot,
-#installform #id_dirroot,
-#installform #id_dataroot,
-#installform #id_dbhost,
-#installform #id_dbname,
-#installform #id_dbuser,
-#installform #id_dbpass,
-#installform #id_prefix {
-    direction: ltr;
-}
 
 .mdl-right > label {
     // Workaround for repository pop-up because the : are outside the label,
diff --git a/theme/bootstrapbase/style/moodle.css b/theme/bootstrapbase/style/moodle.css
index 7116a9275f2cb..6acfa14f19448 100644
--- a/theme/bootstrapbase/style/moodle.css
+++ b/theme/bootstrapbase/style/moodle.css
@@ -12899,10 +12899,6 @@ form {
 .singleselect label {
   margin-right: .3em;
 }
-input#id_externalurl {
-  /*rtl:ignore*/
-  direction: ltr;
-}
 #portfolio-add-button {
   display: inline;
 }
@@ -13036,16 +13032,6 @@ div.backup-section + form:after,
   color: #333;
   text-decoration: none;
 }
-/*rtl:ignore*/
-.mform .fitem .felement input[name=email],
-.mform .fitem .felement input[name=email2],
-.mform .fitem .felement input[name=url],
-.mform .fitem .felement input[name=idnumber],
-.mform .fitem .felement input[name=phone1],
-.mform .fitem .felement input[name=phone2] {
-  text-align: left;
-  direction: ltr;
-}
 #page-grade-edit-outcome-course .courseoutcomes {
   margin-left: auto;
   margin-right: auto;
@@ -13054,18 +13040,6 @@ div.backup-section + form:after,
 #page-grade-edit-outcome-course .courseoutcomes td {
   text-align: center;
 }
-/* Install Process' text fields Forms, should always be justified to the left */
-/*rtl:ignore*/
-#installform #id_wwwroot,
-#installform #id_dirroot,
-#installform #id_dataroot,
-#installform #id_dbhost,
-#installform #id_dbname,
-#installform #id_dbuser,
-#installform #id_dbpass,
-#installform #id_prefix {
-  direction: ltr;
-}
 .mdl-right > label {
   display: inline-block;
 }
diff --git a/user/editlib.php b/user/editlib.php
index 67f2f4a38740b..e09935b52c4a5 100644
--- a/user/editlib.php
+++ b/user/editlib.php
@@ -366,18 +366,23 @@ function useredit_shared_definition(&$mform, $editoroptions, $filemanageroptions
 
     $mform->addElement('text', 'icq', get_string('icqnumber'), 'maxlength="15" size="25"');
     $mform->setType('icq', core_user::get_property_type('icq'));
+    $mform->setForceLtr('icq');
 
     $mform->addElement('text', 'skype', get_string('skypeid'), 'maxlength="50" size="25"');
     $mform->setType('skype', core_user::get_property_type('skype'));
+    $mform->setForceLtr('skype');
 
     $mform->addElement('text', 'aim', get_string('aimid'), 'maxlength="50" size="25"');
     $mform->setType('aim', core_user::get_property_type('aim'));
+    $mform->setForceLtr('aim');
 
     $mform->addElement('text', 'yahoo', get_string('yahooid'), 'maxlength="50" size="25"');
     $mform->setType('yahoo', core_user::get_property_type('yahoo'));
+    $mform->setForceLtr('yahoo');
 
     $mform->addElement('text', 'msn', get_string('msnid'), 'maxlength="50" size="25"');
     $mform->setType('msn', core_user::get_property_type('msn'));
+    $mform->setForceLtr('msn');
 
     $mform->addElement('text', 'idnumber', get_string('idnumber'), 'maxlength="255" size="25"');
     $mform->setType('idnumber', core_user::get_property_type('idnumber'));
@@ -390,9 +395,11 @@ function useredit_shared_definition(&$mform, $editoroptions, $filemanageroptions
 
     $mform->addElement('text', 'phone1', get_string('phone1'), 'maxlength="20" size="25"');
     $mform->setType('phone1', core_user::get_property_type('phone1'));
+    $mform->setForceLtr('phone1');
 
     $mform->addElement('text', 'phone2', get_string('phone2'), 'maxlength="20" size="25"');
     $mform->setType('phone2', core_user::get_property_type('phone2'));
+    $mform->setForceLtr('phone2');
 
     $mform->addElement('text', 'address', get_string('address'), 'maxlength="255" size="25"');
     $mform->setType('address', core_user::get_property_type('address'));