diff --git a/CHANGELOG.md b/CHANGELOG.md
index eecbaff3814..4efb45787a6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -55,6 +55,7 @@ We refer to [GitHub issues](https://github.com/JabRef/jabref/issues) by using `#
 - We grouped and reordered the Main Menu (File, Edit, Library, Quality, Tools, and View tabs & icons). [#4666](https://github.com/JabRef/jabref/issues/4666) [#4667](https://github.com/JabRef/jabref/issues/4667) [#4668](https://github.com/JabRef/jabref/issues/4668) [#4669](https://github.com/JabRef/jabref/issues/4669) [#4670](https://github.com/JabRef/jabref/issues/4670) [#4671](https://github.com/JabRef/jabref/issues/4671) [#4672](https://github.com/JabRef/jabref/issues/4672) [#4673](https://github.com/JabRef/jabref/issues/4673)
 - We added additional modifiers (capitalize, titlecase and sentencecase) to the Bibtex key generator. [#1506](https://github.com/JabRef/jabref/issues/1506)
 - We grouped the toolbar icons and changed the Open Library and Copy icons. [#4584](https://github.com/JabRef/jabref/issues/4584) 
+- We added a browse button next to the path text field for aux-based groups. [#4586](https://github.com/JabRef/jabref/issues/4586)
 
 
 ### Fixed
diff --git a/src/main/java/org/jabref/gui/groups/GroupDialog.java b/src/main/java/org/jabref/gui/groups/GroupDialog.java
index 16b8601a8dd..9859213c926 100644
--- a/src/main/java/org/jabref/gui/groups/GroupDialog.java
+++ b/src/main/java/org/jabref/gui/groups/GroupDialog.java
@@ -13,6 +13,7 @@
 import javafx.geometry.Insets;
 import javafx.geometry.Orientation;
 import javafx.scene.Node;
+import javafx.scene.control.Button;
 import javafx.scene.control.ButtonType;
 import javafx.scene.control.CheckBox;
 import javafx.scene.control.Label;
@@ -24,6 +25,7 @@
 import javafx.scene.control.Toggle;
 import javafx.scene.control.ToggleGroup;
 import javafx.scene.layout.HBox;
+import javafx.scene.layout.Priority;
 import javafx.scene.layout.StackPane;
 import javafx.scene.layout.VBox;
 import javafx.scene.text.Font;
@@ -33,13 +35,16 @@
 
 import org.jabref.Globals;
 import org.jabref.JabRefGUI;
-import org.jabref.gui.JabRefFrame;
+import org.jabref.gui.BasePanel;
+import org.jabref.gui.DialogService;
 import org.jabref.gui.search.rules.describer.SearchDescribers;
 import org.jabref.gui.util.BaseDialog;
+import org.jabref.gui.util.FileDialogConfiguration;
 import org.jabref.gui.util.TooltipTextUtil;
 import org.jabref.logic.auxparser.DefaultAuxParser;
 import org.jabref.logic.l10n.Localization;
 import org.jabref.logic.search.SearchQuery;
+import org.jabref.logic.util.StandardFileType;
 import org.jabref.model.database.BibDatabase;
 import org.jabref.model.entry.FieldName;
 import org.jabref.model.entry.Keyword;
@@ -83,6 +88,8 @@ class GroupDialog extends BaseDialog<AbstractGroup> {
     private final RadioButton independentButton = new RadioButton(Localization.lang("Independent group: When selected, view only this group's entries"));
     private final RadioButton intersectionButton = new RadioButton(Localization.lang("Refine supergroup: When selected, view entries contained in both this group and its supergroup"));
     private final RadioButton unionButton = new RadioButton(Localization.lang("Include subgroups: When selected, view entries contained in this group or its subgroups"));
+    private final DialogService dialogService;
+    private final JabRefPreferences prefs;
 
     // for KeywordGroup
     private final TextField keywordGroupSearchTerm = new TextField();
@@ -105,6 +112,8 @@ class GroupDialog extends BaseDialog<AbstractGroup> {
 
     // for TexGroup
     private final TextField texGroupFilePath = new TextField();
+    private final Button texGroupBrowseButton = new Button("Browse");
+    private final HBox texGroupHBox = new HBox(10);
 
     // for all types
     private final TextFlow descriptionTextFlow = new TextFlow();
@@ -118,7 +127,7 @@ class GroupDialog extends BaseDialog<AbstractGroup> {
      * @param editedGroup The group being edited, or null if a new group is to be
      *                    created.
      */
-    public GroupDialog(JabRefFrame jabrefFrame, AbstractGroup editedGroup) {
+    public GroupDialog(DialogService dialogService, BasePanel basePanel, JabRefPreferences prefs, AbstractGroup editedGroup) {
         this.setTitle(Localization.lang("Edit group"));
 
         explicitRadioButton.setSelected(true);
@@ -128,8 +137,11 @@ public GroupDialog(JabRefFrame jabrefFrame, AbstractGroup editedGroup) {
         descriptionTextFlow.setMinHeight(180);
         descriptionTextFlow.setPrefHeight(180);
 
+        this.dialogService = dialogService;
+        this.prefs = prefs;
+
         // set default values (overwritten if editedGroup != null)
-        keywordGroupSearchField.setText(jabrefFrame.prefs().get(JabRefPreferences.GROUPS_DEFAULT_FIELD));
+        keywordGroupSearchField.setText(prefs.get(JabRefPreferences.GROUPS_DEFAULT_FIELD));
 
         // configure elements
         ToggleGroup groupType = new ToggleGroup();
@@ -261,11 +273,10 @@ public GroupDialog(JabRefFrame jabrefFrame, AbstractGroup editedGroup) {
                     if (explicitRadioButton.isSelected()) {
                         Character keywordDelimiter = Globals.prefs.getKeywordDelimiter();
                         if (groupName.contains(Character.toString(keywordDelimiter))) {
-                            jabrefFrame.showMessage(
-                                    Localization.lang("The group name contains the keyword separator \"%0\" and thus probably does not work as expected.", Character.toString(keywordDelimiter)));
+                            dialogService.showWarningDialogAndWait(null, Localization.lang("The group name contains the keyword separator \"%0\" and thus probably does not work as expected.", Character.toString(keywordDelimiter)));
                         }
 
-                        Optional<GroupTreeNode> rootGroup = jabrefFrame.getCurrentBasePanel().getBibDatabaseContext().getMetaData().getGroups();
+                        Optional<GroupTreeNode> rootGroup = basePanel.getBibDatabaseContext().getMetaData().getGroups();
                         if (rootGroup.isPresent()) {
                             int groupsWithSameName = rootGroup.get().findChildrenSatisfying(group -> group.getName().equals(groupName)).size();
                             boolean warnAboutSameName = false;
@@ -279,8 +290,7 @@ public GroupDialog(JabRefFrame jabrefFrame, AbstractGroup editedGroup) {
                             }
 
                             if (warnAboutSameName) {
-                                jabrefFrame.showMessage(
-                                        Localization.lang("There exists already a group with the same name.", Character.toString(keywordDelimiter)));
+                                dialogService.showErrorDialogAndWait(Localization.lang("There exists already a group with the same name.", Character.toString(keywordDelimiter)));
                                 return null;
                             }
                         }
@@ -323,7 +333,7 @@ groupName, getContext(),
                     resultingGroup.setIconName(iconField.getText());
                     return resultingGroup;
                 } catch (IllegalArgumentException | IOException exception) {
-                    jabrefFrame.showMessage(exception.getLocalizedMessage());
+                    dialogService.showErrorDialogAndWait(exception.getLocalizedMessage(), exception);
                     return null;
                 }
             }
@@ -404,12 +414,12 @@ groupName, getContext(),
         getDialogPane().getScene().getWindow().sizeToScene();
     }
 
-    public GroupDialog() {
-        this(JabRefGUI.getMainFrame(), null);
+    public GroupDialog(DialogService dialogService) {
+        this(dialogService, JabRefGUI.getMainFrame().getCurrentBasePanel(), Globals.prefs, null);
     }
 
-    public GroupDialog(AbstractGroup editedGroup) {
-        this(JabRefGUI.getMainFrame(), editedGroup);
+    public GroupDialog(DialogService dialogService, AbstractGroup editedGroup) {
+        this(dialogService, JabRefGUI.getMainFrame().getCurrentBasePanel(), Globals.prefs, editedGroup);
     }
 
     private static String formatRegExException(String regExp, Exception e) {
@@ -442,7 +452,11 @@ private VBox createOptionsTexGroup() {
         VBox texPanel = new VBox();
         texPanel.setVisible(false);
         texPanel.getChildren().add(new Label(Localization.lang("Aux file")));
-        texPanel.getChildren().add(texGroupFilePath);
+        texGroupBrowseButton.setOnAction((ActionEvent e) -> openBrowseDialog());
+        texGroupHBox.getChildren().add(texGroupFilePath);
+        texGroupHBox.getChildren().add(texGroupBrowseButton);
+        texGroupHBox.setHgrow(texGroupFilePath, Priority.ALWAYS);
+        texPanel.getChildren().add(texGroupHBox);
         return texPanel;
     }
 
@@ -586,6 +600,14 @@ private void updateComponents() {
         getDialogPane().lookupButton(ButtonType.OK).setDisable(!okEnabled);
     }
 
+    private void openBrowseDialog() {
+        FileDialogConfiguration fileDialogConfiguration = new FileDialogConfiguration.Builder()
+            .addExtensionFilter(StandardFileType.AUX)
+            .withDefaultExtension(StandardFileType.AUX)
+            .withInitialDirectory(Globals.prefs.get(JabRefPreferences.WORKING_DIRECTORY)).build();
+        dialogService.showFileOpenDialog(fileDialogConfiguration).ifPresent(file -> texGroupFilePath.setText(file.toAbsolutePath().toString()));
+    }
+
     private String fromTextFlowToHTMLString(TextFlow textFlow) {
         StringBuilder htmlStringBuilder = new StringBuilder();
         for (Node node : textFlow.getChildren()) {
diff --git a/src/main/java/org/jabref/gui/groups/GroupTreeViewModel.java b/src/main/java/org/jabref/gui/groups/GroupTreeViewModel.java
index de4c279e59c..bccddf297e5 100644
--- a/src/main/java/org/jabref/gui/groups/GroupTreeViewModel.java
+++ b/src/main/java/org/jabref/gui/groups/GroupTreeViewModel.java
@@ -141,7 +141,7 @@ private void onActiveDatabaseChanged(Optional<BibDatabaseContext> newDatabase) {
      * Opens "New Group Dialog" and add the resulting group to the specified group
      */
     public void addNewSubgroup(GroupNodeViewModel parent) {
-        Optional<AbstractGroup> newGroup = dialogService.showCustomDialogAndWait(new GroupDialog());
+        Optional<AbstractGroup> newGroup = dialogService.showCustomDialogAndWait(new GroupDialog(dialogService));
         newGroup.ifPresent(group -> {
             parent.addSubgroup(group);
 
@@ -166,7 +166,7 @@ private void writeGroupChangesToMetaData() {
      */
     public void editGroup(GroupNodeViewModel oldGroup) {
         Optional<AbstractGroup> newGroup = dialogService
-                .showCustomDialogAndWait(new GroupDialog(oldGroup.getGroupNode().getGroup()));
+                .showCustomDialogAndWait(new GroupDialog(dialogService, oldGroup.getGroupNode().getGroup()));
         newGroup.ifPresent(group -> {
             // TODO: Keep assignments
             boolean keepPreviousAssignments = dialogService.showConfirmationDialogAndWait(