diff --git a/python/plugins/processing/modeler/ModelerDialog.py b/python/plugins/processing/modeler/ModelerDialog.py
index 31d66b7ca32..21d59872cbf 100755
--- a/python/plugins/processing/modeler/ModelerDialog.py
+++ b/python/plugins/processing/modeler/ModelerDialog.py
@@ -287,8 +287,8 @@ class ModelerDialog(BASE, WIDGET):
 
         if self.hasChanged:
             ret = QMessageBox.question(
-                self, self.tr('Save?'),
-                self.tr('There are unsaved changes in this model, do you want to keep those?'),
+                self, self.tr('Save Model?'),
+                self.tr('There are unsaved changes in this model. Do you want to keep those?'),
                 QMessageBox.Save | QMessageBox.Cancel | QMessageBox.Discard, QMessageBox.Cancel)
 
             if ret == QMessageBox.Save:
diff --git a/python/plugins/processing/modeler/ModelerParameterDefinitionDialog.py b/python/plugins/processing/modeler/ModelerParameterDefinitionDialog.py
index f4b81acfbea..59cfacd9638 100755
--- a/python/plugins/processing/modeler/ModelerParameterDefinitionDialog.py
+++ b/python/plugins/processing/modeler/ModelerParameterDefinitionDialog.py
@@ -114,7 +114,7 @@ class ModelerParameterDefinitionDialog(QDialog):
         super(ModelerParameterDefinitionDialog, self).closeEvent(event)
 
     def setupUi(self):
-        self.setWindowTitle(self.tr('Parameter definition'))
+        self.setWindowTitle(self.tr('Parameter Definition'))
         self.setMinimumWidth(300)
 
         self.verticalLayout = QVBoxLayout(self)
diff --git a/python/plugins/processing/ui/DlgHelpEdition.ui b/python/plugins/processing/ui/DlgHelpEdition.ui
index c00fc13b6c9..a0ea657dee7 100644
--- a/python/plugins/processing/ui/DlgHelpEdition.ui
+++ b/python/plugins/processing/ui/DlgHelpEdition.ui
@@ -11,7 +11,7 @@
    </rect>
   </property>
   <property name="windowTitle">
-   <string>Help editor</string>
+   <string>Help Editor</string>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout_3">
    <property name="spacing">
diff --git a/src/app/qgisapp.cpp b/src/app/qgisapp.cpp
index 261405fb6bd..c6a8ab835c0 100644
--- a/src/app/qgisapp.cpp
+++ b/src/app/qgisapp.cpp
@@ -10292,7 +10292,7 @@ bool QgisApp::saveDirty()
     // old code: mProjectIsDirtyFlag = true;
 
     // prompt user to save
-    answer = QMessageBox::information( this, tr( "Save?" ),
+    answer = QMessageBox::information( this, tr( "Save Project?" ),
                                        tr( "Do you want to save the current project? %1" )
                                        .arg( whyDirty ),
                                        QMessageBox::Save | QMessageBox::Cancel | QMessageBox::Discard,
@@ -10329,7 +10329,7 @@ bool QgisApp::checkTasksDependOnProject()
 
   if ( !activeTaskDescriptions.isEmpty() )
   {
-    QMessageBox::warning( this, tr( "Active tasks" ),
+    QMessageBox::warning( this, tr( "Active Tasks" ),
                           tr( "The following tasks are currently running which depend on layers in this project:\n\n%1\n\nPlease cancel these tasks and retry." ).arg( activeTaskDescriptions.toList().join( QStringLiteral( "\n" ) ) ) );
     return true;
   }