diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index f24097dde..839c395a0 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -34,7 +34,8 @@
             android:supportsPictureInPicture="true"
             android:configChanges="screenSize|smallestScreenSize|screenLayout|orientation"
             android:hardwareAccelerated="true"
-            android:screenOrientation="userPortrait">
+            android:screenOrientation="userPortrait"
+            android:launchMode="singleTop">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
diff --git a/app/src/main/java/com/github/libretube/BackgroundMode.kt b/app/src/main/java/com/github/libretube/BackgroundMode.kt
index ebd851e01..79ff8a319 100644
--- a/app/src/main/java/com/github/libretube/BackgroundMode.kt
+++ b/app/src/main/java/com/github/libretube/BackgroundMode.kt
@@ -77,7 +77,8 @@ class BackgroundMode {
                 DescriptionAdapter(
                     response?.title!!,
                     response?.uploader!!,
-                    response?.thumbnailUrl!!
+                    response?.thumbnailUrl!!,
+                    c
                 )
             )
             .build()
diff --git a/app/src/main/java/com/github/libretube/fragments/PlayerFragment.kt b/app/src/main/java/com/github/libretube/fragments/PlayerFragment.kt
index 55b74e3b3..ec7728127 100644
--- a/app/src/main/java/com/github/libretube/fragments/PlayerFragment.kt
+++ b/app/src/main/java/com/github/libretube/fragments/PlayerFragment.kt
@@ -721,11 +721,11 @@ class PlayerFragment : Fragment() {
         }
         // create a list of subtitles
         val subtitle = mutableListOf<SubtitleConfiguration>()
-        if (response.subtitles!!.isNotEmpty()) {
+        response.subtitles!!.forEach {
             subtitle.add(
-                SubtitleConfiguration.Builder(response.subtitles[0].url!!.toUri())
-                    .setMimeType(response.subtitles[0].mimeType!!) // The correct MIME type (required).
-                    .setLanguage(response.subtitles[0].code) // The subtitle language (optional).
+                SubtitleConfiguration.Builder(it.url!!.toUri())
+                    .setMimeType(it.mimeType!!) // The correct MIME type (required).
+                    .setLanguage(it.code) // The subtitle language (optional).
                     .build()
             )
         }
@@ -867,7 +867,7 @@ class PlayerFragment : Fragment() {
         playerNotification = PlayerNotificationManager
             .Builder(c, 1, "background_mode")
             .setMediaDescriptionAdapter(
-                DescriptionAdapter(title, uploader, thumbnailUrl)
+                DescriptionAdapter(title, uploader, thumbnailUrl, requireContext())
             )
             .build()
 
diff --git a/app/src/main/java/com/github/libretube/util/DescriptionAdapter.kt b/app/src/main/java/com/github/libretube/util/DescriptionAdapter.kt
index 25ed99fbb..ad8feb7ae 100644
--- a/app/src/main/java/com/github/libretube/util/DescriptionAdapter.kt
+++ b/app/src/main/java/com/github/libretube/util/DescriptionAdapter.kt
@@ -1,8 +1,11 @@
 package com.github.libretube.util
 
 import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
+import com.github.libretube.MainActivity
 import com.google.android.exoplayer2.Player
 import com.google.android.exoplayer2.ui.PlayerNotificationManager
 import java.net.URL
@@ -14,32 +17,58 @@ import java.net.URL
 class DescriptionAdapter(
     private val title: String,
     private val channelName: String,
-    private val thumbnailUrl: String
+    private val thumbnailUrl: String,
+    private val context: Context
 ) :
     PlayerNotificationManager.MediaDescriptionAdapter {
+    /**
+     * sets the title of the notification
+     */
     override fun getCurrentContentTitle(player: Player): CharSequence {
         // return controller.metadata.description.title.toString()
         return title
     }
 
+    /**
+     * overrides the action when clicking the notification
+     */
     override fun createCurrentContentIntent(player: Player): PendingIntent? {
         //  return controller.sessionActivity
-        return null
+        /**
+         *  starts a new MainActivity Intent when the player notification is clicked
+         *  it doesn't start a completely new MainActivity because the MainActivity's launchMode
+         *  is set to "singleTop" in the AndroidManifest (important!!!)
+         *  that's the only way to launch back into the previous activity (e.g. the player view
+         */
+        val intent = Intent(context, MainActivity::class.java)
+        return PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_IMMUTABLE)
     }
 
+    /**
+     * the description of the notification (below the title)
+     */
     override fun getCurrentContentText(player: Player): CharSequence? {
         // return controller.metadata.description.subtitle.toString()
         return channelName
     }
 
+    /**
+     * return the icon/thumbnail of the video
+     */
     override fun getCurrentLargeIcon(
         player: Player,
         callback: PlayerNotificationManager.BitmapCallback
     ): Bitmap? {
         lateinit var bitmap: Bitmap
+
+        /**
+         * running on a new thread to prevent a NetworkMainThreadException
+         */
         val thread = Thread {
             try {
-                // try to parse the thumbnailUrl to a Bitmap
+                /**
+                 * try to GET the thumbnail from the URL
+                 */
                 val inputStream = URL(thumbnailUrl).openStream()
                 bitmap = BitmapFactory.decodeStream(inputStream)
             } catch (ex: java.lang.Exception) {
@@ -48,9 +77,14 @@ class DescriptionAdapter(
         }
         thread.start()
         thread.join()
-        // return bitmap if initialized
+        /**
+         * returns the scaled bitmap if it got fetched successfully
+         */
         return try {
-            bitmap
+            val resizedBitmap = Bitmap.createScaledBitmap(
+                bitmap, 1080, 1080, false
+            )
+            resizedBitmap
         } catch (e: Exception) {
             null
         }