diff --git a/CHANGELOG.md b/CHANGELOG.md
index fb6b2aa76dd..251b6ec7e30 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -50,6 +50,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - We fixed an issue where title case didn't capitalize words after en-dash characters and skip capitalization of conjunctions that comes after en-dash characters. [#9068](https://github.com/JabRef/jabref/pull/9068),[#9142](https://github.com/JabRef/jabref/pull/9142)
 - We fixed an issue where JabRef would not exit when a connection to a LibreOffice document was established previously and the document is still open. [#9075](https://github.com/JabRef/jabref/issues/9075)
 - We fixed an issue about selecting the save order in the preferences. [#9175](https://github.com/JabRef/jabref/issues/9147)
+- We fixed an issue where the CSS styles are missing in some dialogs. [#9150](https://github.com/JabRef/jabref/pull/9150)
 
 ### Removed
 
diff --git a/src/main/java/org/jabref/gui/JabRefFrame.java b/src/main/java/org/jabref/gui/JabRefFrame.java
index b931773824d..dd2bf48db16 100644
--- a/src/main/java/org/jabref/gui/JabRefFrame.java
+++ b/src/main/java/org/jabref/gui/JabRefFrame.java
@@ -190,7 +190,7 @@ public JabRefFrame(Stage mainStage) {
         this.themeManager = Globals.getThemeManager();
         this.dialogService = new JabRefDialogService(mainStage, this, themeManager);
         this.undoManager = Globals.undoManager;
-        this.globalSearchBar = new GlobalSearchBar(this, stateManager, prefs, undoManager);
+        this.globalSearchBar = new GlobalSearchBar(this, stateManager, prefs, undoManager, dialogService);
         this.pushToApplicationCommand = new PushToApplicationCommand(stateManager, dialogService, prefs);
         this.fileHistory = new FileHistoryMenu(prefs, dialogService, getOpenDatabaseAction());
         this.taskExecutor = Globals.TASK_EXECUTOR;
diff --git a/src/main/java/org/jabref/gui/fieldeditors/LinkedFileViewModel.java b/src/main/java/org/jabref/gui/fieldeditors/LinkedFileViewModel.java
index 65d5c505f75..1b0c9f6da8f 100644
--- a/src/main/java/org/jabref/gui/fieldeditors/LinkedFileViewModel.java
+++ b/src/main/java/org/jabref/gui/fieldeditors/LinkedFileViewModel.java
@@ -557,6 +557,7 @@ public ValidationStatus fileExistsValidationStatus() {
     public void parsePdfMetadataAndShowMergeDialog() {
         linkedFile.findIn(databaseContext, preferences.getFilePreferences()).ifPresent(filePath -> {
             MultiMergeEntriesView dialog = new MultiMergeEntriesView(preferences, taskExecutor);
+            dialog.setTitle(Localization.lang("Merge PDF metadata"));
             dialog.addSource(Localization.lang("Entry"), entry);
             dialog.addSource(Localization.lang("Verbatim"), wrapImporterToSupplier(new PdfVerbatimBibTextImporter(preferences.getImportFormatPreferences()), filePath));
             dialog.addSource(Localization.lang("Embedded"), wrapImporterToSupplier(new PdfEmbeddedBibFileImporter(preferences.getImportFormatPreferences()), filePath));
@@ -565,7 +566,7 @@ public void parsePdfMetadataAndShowMergeDialog() {
             }
             dialog.addSource(Localization.lang("XMP metadata"), wrapImporterToSupplier(new PdfXmpImporter(preferences.getXmpPreferences()), filePath));
             dialog.addSource(Localization.lang("Content"), wrapImporterToSupplier(new PdfContentImporter(preferences.getImportFormatPreferences()), filePath));
-            dialog.showAndWait().ifPresent(newEntry -> {
+            dialogService.showCustomDialogAndWait(dialog).ifPresent(newEntry -> {
                 databaseContext.getDatabase().removeEntry(entry);
                 databaseContext.getDatabase().insertEntry(newEntry);
             });
diff --git a/src/main/java/org/jabref/gui/search/GlobalSearchBar.java b/src/main/java/org/jabref/gui/search/GlobalSearchBar.java
index d42bcd34cb7..d37c5b2657f 100644
--- a/src/main/java/org/jabref/gui/search/GlobalSearchBar.java
+++ b/src/main/java/org/jabref/gui/search/GlobalSearchBar.java
@@ -39,6 +39,7 @@
 import javafx.scene.text.TextFlow;
 
 import org.jabref.gui.ClipBoardManager;
+import org.jabref.gui.DialogService;
 import org.jabref.gui.Globals;
 import org.jabref.gui.JabRefFrame;
 import org.jabref.gui.StateManager;
@@ -101,16 +102,18 @@ public class GlobalSearchBar extends HBox {
     private final UndoManager undoManager;
 
     private final SearchPreferences searchPreferences;
+    private final DialogService dialogService;
 
     private final BooleanProperty globalSearchActive = new SimpleBooleanProperty(false);
     private GlobalSearchResultDialog globalSearchResultDialog;
 
-    public GlobalSearchBar(JabRefFrame frame, StateManager stateManager, PreferencesService preferencesService, CountingUndoManager undoManager) {
+    public GlobalSearchBar(JabRefFrame frame, StateManager stateManager, PreferencesService preferencesService, CountingUndoManager undoManager, DialogService dialogService) {
         super();
         this.stateManager = stateManager;
         this.preferencesService = preferencesService;
         this.searchPreferences = preferencesService.getSearchPreferences();
         this.undoManager = undoManager;
+        this.dialogService = dialogService;
 
         searchField.disableProperty().bind(needsDatabase(stateManager).not());
 
@@ -240,7 +243,7 @@ private void initSearchModifierButtons() {
             globalSearchActive.setValue(true);
             globalSearchResultDialog = new GlobalSearchResultDialog(undoManager);
             performSearch();
-            globalSearchResultDialog.showAndWait();
+            dialogService.showCustomDialogAndWait(globalSearchResultDialog);
             globalSearchActive.setValue(false);
         });
     }
diff --git a/src/main/resources/l10n/JabRef_en.properties b/src/main/resources/l10n/JabRef_en.properties
index c9e469a00f8..12093e83f81 100644
--- a/src/main/resources/l10n/JabRef_en.properties
+++ b/src/main/resources/l10n/JabRef_en.properties
@@ -2448,6 +2448,7 @@ Symmetric\ word\ by\ word=Symmetric word by word
 Verbatim=Verbatim
 Word\ by\ word=Word by word
 Could\ not\ extract\ Metadata\ from\:\ %0=Could not extract Metadata from: %0
+Merge\ PDF\ metadata=Merge PDF metadata
 
 Add\ certificate=Add certificate
 Serial\ number=Serial number