diff --git a/lib/l10n/app_en.arb b/lib/l10n/app_en.arb
index 673b4c7..2119e09 100644
--- a/lib/l10n/app_en.arb
+++ b/lib/l10n/app_en.arb
@@ -302,5 +302,7 @@
     "example2": "Unblocks access to example.org and all its subdomains.",
     "example3": "Adds a comment.",
     "example4": "Block access to domains matching the specified regular expression.",
-    "moreInformation": "More information"
+    "moreInformation": "More information",
+    "addingRule": "Adding rule...",
+    "deletingRule": "Deleting rule..."
 }
\ No newline at end of file
diff --git a/lib/l10n/app_es.arb b/lib/l10n/app_es.arb
index 28c9693..78f23fe 100644
--- a/lib/l10n/app_es.arb
+++ b/lib/l10n/app_es.arb
@@ -302,5 +302,7 @@
     "example2": "Desbloquea el acceso al dominio ejemplo.org y a todos sus subdominios.",
     "example3": "Añade un comentario.",
     "example4": "Bloquea el acceso a los dominios que coincidan con la expresión regular especificada.",
-    "moreInformation": "Más información"
+    "moreInformation": "Más información",
+    "addingRule": "Añadiendo regla...",
+    "deletingRule": "Eliminando regla..."
 }
\ No newline at end of file
diff --git a/lib/screens/filters/add_custom_rule.dart b/lib/screens/filters/add_custom_rule.dart
index 7320635..d7b660c 100644
--- a/lib/screens/filters/add_custom_rule.dart
+++ b/lib/screens/filters/add_custom_rule.dart
@@ -24,18 +24,24 @@ class _AddCustomRuleState extends State<AddCustomRule> {
   final TextEditingController domainController = TextEditingController();
   String? domainError;
 
-  bool validValues = false;
-
   String preset = "block";
 
   bool addImportant = false;
 
-  void checkValidValues() {
-    if (domainController.text != '') {
-      setState(() => validValues = true);
+  bool checkValidValues() {
+    if (
+      domainController.text != '' && 
+      domainError == null && 
+      (
+        preset == 'block' ||
+        preset == 'unblock' ||
+        preset == 'custom'
+      )
+    ) {
+      return true;
     }
     else {
-      setState(() => validValues = false);
+      return false;
     }
   }
 
@@ -47,19 +53,22 @@ class _AddCustomRuleState extends State<AddCustomRule> {
     else {
       setState(() => domainError = AppLocalizations.of(context)!.domainNotValid);
     }
+    checkValidValues();
   }
 
-  String buildRule() {
+  String buildRule({String?value}) {
     String rule = "";
+
+    String fieldValue = value ?? domainController.text;
     
     if (preset == 'block') {
-      rule = "||${domainController.text.trim()}^";
+      rule = "||${fieldValue.trim()}^";
     }
     else if (preset == 'unblock') {
-      rule = "@@||${domainController.text.trim()}^";
+      rule = "@@||${fieldValue.trim()}^";
     }
     else {
-      rule = domainController.text.trim();
+      rule = fieldValue.trim();
     }
     
     if (addImportant == true) {
@@ -151,7 +160,7 @@ class _AddCustomRuleState extends State<AddCustomRule> {
                     padding: const EdgeInsets.symmetric(horizontal: 28),
                     child: TextFormField(
                       controller: domainController,
-                      onChanged: validateDomain,
+                      onChanged: (value) => setState(() => {}),
                       decoration: InputDecoration(
                         prefixIcon: const Icon(Icons.link_rounded),
                         border: const OutlineInputBorder(
@@ -378,16 +387,16 @@ class _AddCustomRuleState extends State<AddCustomRule> {
                   ),
                   const SizedBox(width: 20),
                   TextButton(
-                    onPressed: validValues == true
+                    onPressed: checkValidValues() == true
                       ? () {
                           Navigator.pop(context);
-                          widget.onConfirm(domainController.text);
+                          widget.onConfirm(buildRule());
                         }
                       : null, 
                     child: Text(
                       AppLocalizations.of(context)!.confirm,
                       style: TextStyle(
-                        color: validValues == true
+                        color: checkValidValues() == true
                           ? Theme.of(context).primaryColor
                           : Colors.grey
                       ),
diff --git a/lib/screens/filters/custom_rules_list.dart b/lib/screens/filters/custom_rules_list.dart
index 77a11d5..255e156 100644
--- a/lib/screens/filters/custom_rules_list.dart
+++ b/lib/screens/filters/custom_rules_list.dart
@@ -64,7 +64,7 @@ class _CustomRulesListState extends State<CustomRulesList> {
 
     void removeCustomRule(String rule) async {
       ProcessModal processModal = ProcessModal(context: context);
-      processModal.open(AppLocalizations.of(context)!.updatingRules);
+      processModal.open(AppLocalizations.of(context)!.deletingRule);
 
       final List<String> newRules = serversProvider.filtering.data!.userRules.where((r) => r != rule).toList();
 
@@ -146,12 +146,16 @@ class _CustomRulesListState extends State<CustomRulesList> {
               child: Column(
                 mainAxisAlignment: MainAxisAlignment.center,
                 children: [
-                  Text(
-                    AppLocalizations.of(context)!.noBlackLists,
-                    textAlign: TextAlign.center,
-                    style: const TextStyle(
-                      fontSize: 24,
-                      color: Colors.grey
+                  SizedBox(
+                    width: MediaQuery.of(context).size.width-100,
+                    child: Text(
+                      AppLocalizations.of(context)!.noBlackLists,
+                      textAlign: TextAlign.center,
+                      overflow: TextOverflow.ellipsis,
+                      style: const TextStyle(
+                        fontSize: 24,
+                        color: Colors.grey
+                      ),
                     ),
                   ),
                   const SizedBox(height: 30),
diff --git a/lib/screens/filters/fab.dart b/lib/screens/filters/fab.dart
index 2c26a70..d61bcc5 100644
--- a/lib/screens/filters/fab.dart
+++ b/lib/screens/filters/fab.dart
@@ -30,7 +30,7 @@ class FiltersFab extends StatelessWidget {
 
     void confirmAddRule(String rule) async {
       ProcessModal processModal = ProcessModal(context: context);
-      processModal.open(AppLocalizations.of(context)!.updatingRules);
+      processModal.open(AppLocalizations.of(context)!.addingRule);
 
       final List<String> newRules = serversProvider.filtering.data!.userRules;
       newRules.add(rule);