diff --git a/tasmota/xdrv_01_webserver.ino b/tasmota/xdrv_01_webserver.ino
index a1e4a247b..7bb905aee 100644
--- a/tasmota/xdrv_01_webserver.ino
+++ b/tasmota/xdrv_01_webserver.ino
@@ -428,18 +428,18 @@ const char HTTP_FORM_MODULE[] PROGMEM =
 const char HTTP_FORM_WIFI[] PROGMEM =
   "<fieldset><legend><b>&nbsp;" D_WIFI_PARAMETERS "&nbsp;</b></legend>"
   "<form method='get' action='wi'>"
-  "<p><b>" D_AP1_SSID "</b> (" STA_SSID1 ")<br><input id='s1' placeholder='" STA_SSID1 "' value='%s'></p>"
-  "<p><label><b>" D_AP1_PASSWORD "</b><input type='checkbox' onclick='sp(\"p1\")'></label><br><input id='p1' type='password' placeholder='" D_AP1_PASSWORD "' value='" D_ASTERISK_PWD "'></p>"
-  "<p><b>" D_AP2_SSID "</b> (" STA_SSID2 ")<br><input id='s2' placeholder='" STA_SSID2 "' value='%s'></p>"
-  "<p><label><b>" D_AP2_PASSWORD "</b><input type='checkbox' onclick='sp(\"p2\")'></label><br><input id='p2' type='password' placeholder='" D_AP2_PASSWORD "' value='" D_ASTERISK_PWD "'></p>"
-  "<p><b>" D_HOSTNAME "</b> (%s)<br><input id='h' placeholder='%s' value='%s'></p>"
-  "<p><b>" D_CORS_DOMAIN "</b><input id='c' placeholder='" CORS_DOMAIN "' value='%s'></p>";
+  "<p><b>" D_AP1_SSID "</b> (" STA_SSID1 ")<br><input id='s1' placeholder=\"" STA_SSID1 "\" value=\"%s\"></p>"  // Need \" instead of ' to be able to use ' in text (#8489)
+  "<p><label><b>" D_AP1_PASSWORD "</b><input type='checkbox' onclick='sp(\"p1\")'></label><br><input id='p1' type='password' placeholder=\"" D_AP1_PASSWORD "\" value=\"" D_ASTERISK_PWD "\"></p>"
+  "<p><b>" D_AP2_SSID "</b> (" STA_SSID2 ")<br><input id='s2' placeholder=\"" STA_SSID2 "\" value=\"%s\"></p>"
+  "<p><label><b>" D_AP2_PASSWORD "</b><input type='checkbox' onclick='sp(\"p2\")'></label><br><input id='p2' type='password' placeholder=\"" D_AP2_PASSWORD "\" value=\"" D_ASTERISK_PWD "\"></p>"
+  "<p><b>" D_HOSTNAME "</b> (%s)<br><input id='h' placeholder=\"%s\" value=\"%s\"></p>"
+  "<p><b>" D_CORS_DOMAIN "</b><input id='c' placeholder=\"" CORS_DOMAIN "\" value=\"%s\"></p>";
 
 const char HTTP_FORM_LOG1[] PROGMEM =
   "<fieldset><legend><b>&nbsp;" D_LOGGING_PARAMETERS "&nbsp;</b>"
   "</legend><form method='get' action='lg'>";
 const char HTTP_FORM_LOG2[] PROGMEM =
-  "<p><b>" D_SYSLOG_HOST "</b> (" SYS_LOG_HOST ")<br><input id='lh' placeholder='" SYS_LOG_HOST "' value='%s'></p>"
+  "<p><b>" D_SYSLOG_HOST "</b> (" SYS_LOG_HOST ")<br><input id='lh' placeholder=\"" SYS_LOG_HOST "\" value=\"%s\"></p>"
   "<p><b>" D_SYSLOG_PORT "</b> (" STR(SYS_LOG_PORT) ")<br><input id='lp' placeholder='" STR(SYS_LOG_PORT) "' value='%d'></p>"
   "<p><b>" D_TELEMETRY_PERIOD "</b> (" STR(TELE_PERIOD) ")<br><input id='lt' placeholder='" STR(TELE_PERIOD) "' value='%d'></p>";
 
@@ -448,15 +448,15 @@ const char HTTP_FORM_OTHER[] PROGMEM =
   "<form method='get' action='co'>"
   "<p></p>"
   "<fieldset><legend><b>&nbsp;" D_TEMPLATE "&nbsp;</b></legend>"
-  "<p><input id='t1' placeholder='" D_TEMPLATE "' value='%s'></p>"
+  "<p><input id='t1' placeholder=\"" D_TEMPLATE "\" value=\"%s\"></p>"
   "<p><label><input id='t2' type='checkbox'%s><b>" D_ACTIVATE "</b></label></p>"
   "</fieldset>"
   "<br>"
-  "<label><b>" D_WEB_ADMIN_PASSWORD "</b><input type='checkbox' onclick='sp(\"wp\")'></label><br><input id='wp' type='password' placeholder='" D_WEB_ADMIN_PASSWORD "' value='" D_ASTERISK_PWD "'><br>"
+  "<label><b>" D_WEB_ADMIN_PASSWORD "</b><input type='checkbox' onclick='sp(\"wp\")'></label><br><input id='wp' type='password' placeholder=\"" D_WEB_ADMIN_PASSWORD "\" value=\"" D_ASTERISK_PWD "\"><br>"
   "<br>"
   "<label><input id='b1' type='checkbox'%s><b>" D_MQTT_ENABLE "</b></label><br>"
   "<br>"
-  "<label><b>" D_DEVICE_NAME "</b> (%s)</label><br><input id='dn' placeholder='' value='%s'><br>"
+  "<label><b>" D_DEVICE_NAME "</b> (%s)</label><br><input id='dn' placeholder=\"\" value=\"%s\"><br>"
   "<br>";
 
 const char HTTP_FORM_END[] PROGMEM =
@@ -471,7 +471,7 @@ const char HTTP_FORM_UPG[] PROGMEM =
   "<div id='f1' style='display:block;'>"
   "<fieldset><legend><b>&nbsp;" D_UPGRADE_BY_WEBSERVER "&nbsp;</b></legend>"
   "<form method='get' action='u1'>"
-  "<br><b>" D_OTA_URL "</b><br><input id='o' placeholder='OTA_URL' value='%s'><br>"
+  "<br><b>" D_OTA_URL "</b><br><input id='o' placeholder=\"OTA_URL\" value=\"%s\"><br>"
   "<br><button type='submit'>" D_START_UPGRADE "</button></form>"
   "</fieldset><br><br>"
   "<fieldset><legend><b>&nbsp;" D_UPGRADE_BY_FILE_UPLOAD "&nbsp;</b></legend>";
@@ -2004,7 +2004,7 @@ void HandleOtherConfiguration(void)
 #endif  // USE_SONOFF_IFAN
   for (uint32_t i = 0; i < maxfn; i++) {
     snprintf_P(stemp, sizeof(stemp), PSTR("%d"), i +1);
-    WSContentSend_P(PSTR("<b>" D_FRIENDLY_NAME " %d</b> (" FRIENDLY_NAME "%s)<br><input id='a%d' placeholder='" FRIENDLY_NAME "%s' value='%s'><p></p>"),
+    WSContentSend_P(PSTR("<b>" D_FRIENDLY_NAME " %d</b> (" FRIENDLY_NAME "%s)<br><input id='a%d' placeholder=\"" FRIENDLY_NAME "%s\" value=\"%s\"><p></p>"),
       i +1,
       (i) ? stemp : "",
       i,
diff --git a/tasmota/xdrv_02_mqtt.ino b/tasmota/xdrv_02_mqtt.ino
index eaa2562e8..9e06f4e90 100644
--- a/tasmota/xdrv_02_mqtt.ino
+++ b/tasmota/xdrv_02_mqtt.ino
@@ -1240,14 +1240,14 @@ const char HTTP_BTN_MENU_MQTT[] PROGMEM =
 const char HTTP_FORM_MQTT1[] PROGMEM =
   "<fieldset><legend><b>&nbsp;" D_MQTT_PARAMETERS "&nbsp;</b></legend>"
   "<form method='get' action='" WEB_HANDLE_MQTT "'>"
-  "<p><b>" D_HOST "</b> (" MQTT_HOST ")<br><input id='mh' placeholder='" MQTT_HOST" ' value='%s'></p>"
+  "<p><b>" D_HOST "</b> (" MQTT_HOST ")<br><input id='mh' placeholder=\"" MQTT_HOST "\" value=\"%s\"></p>"
   "<p><b>" D_PORT "</b> (" STR(MQTT_PORT) ")<br><input id='ml' placeholder='" STR(MQTT_PORT) "' value='%d'></p>"
-  "<p><b>" D_CLIENT "</b> (%s)<br><input id='mc' placeholder='%s' value='%s'></p>";
+  "<p><b>" D_CLIENT "</b> (%s)<br><input id='mc' placeholder=\"%s\" value=\"%s\"></p>";
 const char HTTP_FORM_MQTT2[] PROGMEM =
-  "<p><b>" D_USER "</b> (" MQTT_USER ")<br><input id='mu' placeholder='" MQTT_USER "' value='%s'></p>"
-  "<p><label><b>" D_PASSWORD "</b><input type='checkbox' onclick='sp(\"mp\")'></label><br><input id='mp' type='password' placeholder='" D_PASSWORD "' value='" D_ASTERISK_PWD "'></p>"
-  "<p><b>" D_TOPIC "</b> = %%topic%% (%s)<br><input id='mt' placeholder='%s' value='%s'></p>"
-  "<p><b>" D_FULL_TOPIC "</b> (%s)<br><input id='mf' placeholder='%s' value='%s'></p>";
+  "<p><b>" D_USER "</b> (" MQTT_USER ")<br><input id='mu' placeholder=\"" MQTT_USER "\" value=\"%s\"></p>"
+  "<p><label><b>" D_PASSWORD "</b><input type='checkbox' onclick='sp(\"mp\")'></label><br><input id='mp' type='password' placeholder=\"" D_PASSWORD "\" value=\"" D_ASTERISK_PWD "\"></p>"
+  "<p><b>" D_TOPIC "</b> = %%topic%% (%s)<br><input id='mt' placeholder=\"%s\" value=\"%s\"></p>"
+  "<p><b>" D_FULL_TOPIC "</b> (%s)<br><input id='mf' placeholder=\"%s\" value=\"%s\"></p>";
 
 void HandleMqttConfiguration(void)
 {