diff --git a/homeassistant/components/fritz/quality_scale.yaml b/homeassistant/components/fritz/quality_scale.yaml
index 805705eb4b4..361d61df6a0 100644
--- a/homeassistant/components/fritz/quality_scale.yaml
+++ b/homeassistant/components/fritz/quality_scale.yaml
@@ -7,9 +7,7 @@ rules:
   config-flow-test-coverage:
     status: todo
     comment: one coverage miss in line 110
-  config-flow:
-    status: todo
-    comment: data_description are missing
+  config-flow: done
   dependency-transparency: done
   docs-actions: done
   docs-high-level-description: done
diff --git a/homeassistant/components/fritz/strings.json b/homeassistant/components/fritz/strings.json
index 06a07cba79e..6191fc524dd 100644
--- a/homeassistant/components/fritz/strings.json
+++ b/homeassistant/components/fritz/strings.json
@@ -1,4 +1,11 @@
 {
+  "common": {
+    "data_description_host": "The hostname or IP address of your FRITZ!Box router.",
+    "data_description_port": "Leave empty to use the default port.",
+    "data_description_username": "Username for the FRITZ!Box.",
+    "data_description_password": "Password for the FRITZ!Box.",
+    "data_description_ssl": "Use SSL to connect to the FRITZ!Box."
+  },
   "config": {
     "flow_title": "{name}",
     "step": {
@@ -9,6 +16,11 @@
           "username": "[%key:common::config_flow::data::username%]",
           "password": "[%key:common::config_flow::data::password%]",
           "ssl": "[%key:common::config_flow::data::ssl%]"
+        },
+        "data_description": {
+          "username": "[%key:component::fritz::common::data_description_username%]",
+          "password": "[%key:component::fritz::common::data_description_password%]",
+          "ssl": "[%key:component::fritz::common::data_description_ssl%]"
         }
       },
       "reauth_confirm": {
@@ -17,6 +29,10 @@
         "data": {
           "username": "[%key:common::config_flow::data::username%]",
           "password": "[%key:common::config_flow::data::password%]"
+        },
+        "data_description": {
+          "username": "[%key:component::fritz::common::data_description_username%]",
+          "password": "[%key:component::fritz::common::data_description_password%]"
         }
       },
       "reconfigure": {
@@ -28,8 +44,9 @@
           "ssl": "[%key:common::config_flow::data::ssl%]"
         },
         "data_description": {
-          "host": "The hostname or IP address of your FRITZ!Box router.",
-          "port": "Leave it empty to use the default port."
+          "host": "[%key:component::fritz::common::data_description_host%]",
+          "port": "[%key:component::fritz::common::data_description_port%]",
+          "ssl": "[%key:component::fritz::common::data_description_ssl%]"
         }
       },
       "user": {
@@ -43,8 +60,11 @@
           "ssl": "[%key:common::config_flow::data::ssl%]"
         },
         "data_description": {
-          "host": "The hostname or IP address of your FRITZ!Box router.",
-          "port": "Leave it empty to use the default port."
+          "host": "[%key:component::fritz::common::data_description_host%]",
+          "port": "[%key:component::fritz::common::data_description_port%]",
+          "username": "[%key:component::fritz::common::data_description_username%]",
+          "password": "[%key:component::fritz::common::data_description_password%]",
+          "ssl": "[%key:component::fritz::common::data_description_ssl%]"
         }
       }
     },
@@ -70,6 +90,10 @@
         "data": {
           "consider_home": "Seconds to consider a device at 'home'",
           "old_discovery": "Enable old discovery method"
+        },
+        "data_description": {
+          "consider_home": "Time in seconds to consider a device at home. Default is 180 seconds.",
+          "old_discovery": "Enable old discovery method. This is needed for some scenarios."
         }
       }
     }
@@ -169,8 +193,12 @@
     "config_entry_not_found": {
       "message": "Failed to perform action \"{service}\". Config entry for target not found"
     },
-    "service_parameter_unknown": { "message": "Action or parameter unknown" },
-    "service_not_supported": { "message": "Action not supported" },
+    "service_parameter_unknown": {
+      "message": "Action or parameter unknown"
+    },
+    "service_not_supported": {
+      "message": "Action not supported"
+    },
     "error_refresh_hosts_info": {
       "message": "Error refreshing hosts info"
     },