diff --git a/.idea/runConfigurations/JabRef_Main.xml b/.idea/runConfigurations/JabRef_Main.xml
index 048f2dd8126..70f04ee246c 100644
--- a/.idea/runConfigurations/JabRef_Main.xml
+++ b/.idea/runConfigurations/JabRef_Main.xml
@@ -2,11 +2,11 @@
   <configuration default="false" name="JabRef Main" type="Application" factoryName="Application" singleton="false">
     <option name="MAIN_CLASS_NAME" value="org.jabref.JabRefMain" />
     <module name="JabRef.main" />
-    <option name="VM_PARAMETERS" value="--patch-module test=fastparse_2.12-1.0.0.jar --patch-module test2=fastparse-utils_2.12-1.0.0.jar --patch-module test3=sourcecode_2.12-0.1.4.jar --patch-module org.jabref=build/resources/main --add-exports javafx.controls/com.sun.javafx.scene.control=org.jabref --add-exports org.controlsfx.controls/impl.org.controlsfx.skin=org.jabref --add-opens javafx.controls/javafx.scene.control=org.jabref --add-opens org.controlsfx.controls/org.controlsfx.control.textfield=org.jabref --add-exports javafx.graphics/com.sun.javafx.scene=org.controlsfx.controls --add-exports javafx.graphics/com.sun.javafx.scene.traversal=org.controlsfx.controls --add-exports javafx.graphics/com.sun.javafx.css=org.controlsfx.controls --add-exports javafx.controls/com.sun.javafx.scene.control.behavior=org.controlsfx.controls --add-exports javafx.controls/com.sun.javafx.scene.control=org.controlsfx.controls --add-exports javafx.controls/com.sun.javafx.scene.control.inputmap=org.controlsfx.controls --add-exports javafx.base/com.sun.javafx.event=org.controlsfx.controls --add-exports javafx.base/com.sun.javafx.collections=org.controlsfx.controls --add-exports javafx.base/com.sun.javafx.runtime=org.controlsfx.controls --add-exports javafx.web/com.sun.webkit=org.controlsfx.controls --add-exports javafx.graphics/com.sun.javafx.css=org.controlsfx.controls --add-opens javafx.controls/javafx.scene.control.skin=org.controlsfx.controls --add-opens javafx.graphics/javafx.scene=org.controlsfx.controls" />
+    <option name="VM_PARAMETERS" value="--patch-module test=fastparse_2.12-1.0.0.jar --patch-module test2=fastparse-utils_2.12-1.0.0.jar --patch-module test3=sourcecode_2.12-0.1.4.jar --patch-module org.jabref=build/resources/main --add-exports javafx.controls/com.sun.javafx.scene.control=org.jabref --add-exports org.controlsfx.controls/impl.org.controlsfx.skin=org.jabref --add-opens javafx.controls/javafx.scene.control=org.jabref --add-opens org.controlsfx.controls/org.controlsfx.control.textfield=org.jabref --add-exports javafx.graphics/com.sun.javafx.scene=org.controlsfx.controls --add-exports javafx.graphics/com.sun.javafx.scene.traversal=org.controlsfx.controls --add-exports javafx.graphics/com.sun.javafx.css=org.controlsfx.controls --add-exports javafx.controls/com.sun.javafx.scene.control.behavior=org.controlsfx.controls --add-exports javafx.controls/com.sun.javafx.scene.control=org.controlsfx.controls --add-exports javafx.controls/com.sun.javafx.scene.control.inputmap=org.controlsfx.controls --add-exports javafx.base/com.sun.javafx.event=org.controlsfx.controls --add-exports javafx.base/com.sun.javafx.collections=org.controlsfx.controls --add-exports javafx.base/com.sun.javafx.runtime=org.controlsfx.controls --add-exports javafx.web/com.sun.webkit=org.controlsfx.controls --add-exports javafx.graphics/com.sun.javafx.css=org.controlsfx.controls --add-opens javafx.controls/javafx.scene.control.skin=org.controlsfx.controls --add-opens javafx.graphics/javafx.scene=org.controlsfx.controls --add-exports com.oracle.truffle.regex/com.oracle.truffle.regex=org.graalvm.truffle" />
     <option name="WORKING_DIRECTORY" value="$MODULE_WORKING_DIR$" />
     <method v="2">
       <option name="Gradle.BeforeRunTask" enabled="true" tasks="processResources" externalProjectPath="$PROJECT_DIR$" vmOptions="" scriptParameters="" />
       <option name="Make" enabled="true" />
     </method>
   </configuration>
-</component>
+</component>
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 26772b56e43..cb60b9aa838 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -68,6 +68,7 @@ We refer to [GitHub issues](https://github.com/JabRef/jabref/issues) by using `#
 - We fixed an issue where notifications where shown during autosave. [#5555](https://github.com/JabRef/jabref/issues/5555)
 - We fixed an issue where the side pane was not remembering its position. [#5615](https://github.com/JabRef/jabref/issues/5615)
 - We fixed an issue where JabRef could not interact with [Oracle XE](https://www.oracle.com/de/database/technologies/appdev/xe.html) in the [shared SQL database setup](https://docs.jabref.org/collaborative-work/sqldatabase).
+- We fixed an issue where the toolbar icons were hidden on smaller screens.
 
 ### Removed
 
diff --git a/src/main/java/org/jabref/gui/JabRefFrame.java b/src/main/java/org/jabref/gui/JabRefFrame.java
index 93337ecb5ef..39c5c3c72b3 100644
--- a/src/main/java/org/jabref/gui/JabRefFrame.java
+++ b/src/main/java/org/jabref/gui/JabRefFrame.java
@@ -422,8 +422,6 @@ public void changed(ObservableValue<? extends Boolean> observable, Boolean oldVa
 
                     EasyBind.subscribe(sidePane.visibleProperty(), visible -> {
                         if (visible) {
-                            // Run SplitPane.setResizableWithParent later to avoid miscalculation during initial layouting
-                            Platform.runLater(() -> SplitPane.setResizableWithParent(sidePane, Boolean.FALSE));
                             if (!splitPane.getItems().contains(sidePane)) {
                                 splitPane.getItems().add(0, sidePane);
                                 setDividerPosition();
@@ -452,6 +450,7 @@ private void setDividerPosition() {
 
     private Node createToolbar() {
         Pane leftSpacer = new Pane();
+        leftSpacer.setMinWidth(50);
         HBox.setHgrow(leftSpacer, Priority.SOMETIMES);
         Pane rightSpacer = new Pane();
         HBox.setHgrow(rightSpacer, Priority.SOMETIMES);
@@ -471,9 +470,6 @@ private Node createToolbar() {
                 factory.createIconButton(StandardActions.SAVE_LIBRARY, new OldDatabaseCommandWrapper(Actions.SAVE, this, stateManager)),
                 leftSpacer
         );
-        leftSide.setMinWidth(100);
-        leftSide.prefWidthProperty().bind(sidePane.widthProperty());
-        leftSide.maxWidthProperty().bind(sidePane.widthProperty());
 
         final PushToApplicationAction pushToApplicationAction = getPushToApplicationsManager().getPushToApplicationAction();
         final Button pushToApplicationButton = factory.createIconButton(pushToApplicationAction.getActionInformation(), pushToApplicationAction);