diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/AgeRestrictedContentException.java b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/AgeRestrictedContentException.java
new file mode 100644
index 000000000..b11c9d67b
--- /dev/null
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/AgeRestrictedContentException.java
@@ -0,0 +1,10 @@
+package org.schabi.newpipe.extractor.exceptions;
+
+public class AgeRestrictedContentException extends ContentNotAvailableException {
+    public AgeRestrictedContentException(final String message) {
+        super(message);
+    }
+    public AgeRestrictedContentException(final String message, final Throwable cause) {
+        super(message, cause);
+    }
+}
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ContentNotAvailableException.java b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ContentNotAvailableException.java
index 4f5e37ec1..15e585c44 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ContentNotAvailableException.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ContentNotAvailableException.java
@@ -1,11 +1,11 @@
 package org.schabi.newpipe.extractor.exceptions;
 
 public class ContentNotAvailableException extends ParsingException {
-    public ContentNotAvailableException(String message) {
+    public ContentNotAvailableException(final String message) {
         super(message);
     }
 
-    public ContentNotAvailableException(String message, Throwable cause) {
+    public ContentNotAvailableException(final String message, final Throwable cause) {
         super(message, cause);
     }
 }
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ContentNotSupportedException.java b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ContentNotSupportedException.java
index c32575b45..9242c2fc5 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ContentNotSupportedException.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ContentNotSupportedException.java
@@ -1,11 +1,11 @@
 package org.schabi.newpipe.extractor.exceptions;
 
 public class ContentNotSupportedException extends ParsingException {
-    public ContentNotSupportedException(String message) {
+    public ContentNotSupportedException(final String message) {
         super(message);
     }
 
-    public ContentNotSupportedException(String message, Throwable cause) {
+    public ContentNotSupportedException(final String message, final Throwable cause) {
         super(message, cause);
     }
 }
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ExtractionException.java b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ExtractionException.java
index 263b78112..d52a78ef8 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ExtractionException.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ExtractionException.java
@@ -21,15 +21,15 @@ package org.schabi.newpipe.extractor.exceptions;
  */
 
 public class ExtractionException extends Exception {
-    public ExtractionException(String message) {
+    public ExtractionException(final String message) {
         super(message);
     }
 
-    public ExtractionException(Throwable cause) {
+    public ExtractionException(final Throwable cause) {
         super(cause);
     }
 
-    public ExtractionException(String message, Throwable cause) {
+    public ExtractionException(final String message, final Throwable cause) {
         super(message, cause);
     }
 }
\ No newline at end of file
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/FoundAdException.java b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/FoundAdException.java
index 2828a521d..66e9b7f46 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/FoundAdException.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/FoundAdException.java
@@ -21,11 +21,11 @@ package org.schabi.newpipe.extractor.exceptions;
  */
 
 public class FoundAdException extends ParsingException {
-    public FoundAdException(String message) {
+    public FoundAdException(final String message) {
         super(message);
     }
 
-    public FoundAdException(String message, Throwable cause) {
+    public FoundAdException(final String message, final Throwable cause) {
         super(message, cause);
     }
 }
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/GeographicRestrictionException.java b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/GeographicRestrictionException.java
index 23ba31aa9..6e5558233 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/GeographicRestrictionException.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/GeographicRestrictionException.java
@@ -1,11 +1,11 @@
 package org.schabi.newpipe.extractor.exceptions;
 
 public class GeographicRestrictionException extends ContentNotAvailableException {
-    public GeographicRestrictionException(String message) {
+    public GeographicRestrictionException(final String message) {
         super(message);
     }
 
-    public GeographicRestrictionException(String message, Throwable cause) {
+    public GeographicRestrictionException(final String message, final Throwable cause) {
         super(message, cause);
     }
 }
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/PaidContentException.java b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/PaidContentException.java
index f49c75046..144675101 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/PaidContentException.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/PaidContentException.java
@@ -1,11 +1,11 @@
 package org.schabi.newpipe.extractor.exceptions;
 
 public class PaidContentException extends ContentNotAvailableException {
-    public PaidContentException(String message) {
+    public PaidContentException(final String message) {
         super(message);
     }
 
-    public PaidContentException(String message, Throwable cause) {
+    public PaidContentException(final String message, final Throwable cause) {
         super(message, cause);
     }
 }
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ParsingException.java b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ParsingException.java
index 25774ccd6..439022aac 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ParsingException.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ParsingException.java
@@ -22,11 +22,11 @@ package org.schabi.newpipe.extractor.exceptions;
 
 
 public class ParsingException extends ExtractionException {
-    public ParsingException(String message) {
+    public ParsingException(final String message) {
         super(message);
     }
 
-    public ParsingException(String message, Throwable cause) {
+    public ParsingException(final String message, final Throwable cause) {
         super(message, cause);
     }
-}
\ No newline at end of file
+}
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/PrivateContentException.java b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/PrivateContentException.java
index e6a1b66c8..72d2976d1 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/PrivateContentException.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/PrivateContentException.java
@@ -1,11 +1,11 @@
 package org.schabi.newpipe.extractor.exceptions;
 
 public class PrivateContentException extends ContentNotAvailableException {
-    public PrivateContentException(String message) {
+    public PrivateContentException(final String message) {
         super(message);
     }
 
-    public PrivateContentException(String message, Throwable cause) {
+    public PrivateContentException(final String message, final Throwable cause) {
         super(message, cause);
     }
 }
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ReCaptchaException.java b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ReCaptchaException.java
index 09c2a1c05..504ea8fe0 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ReCaptchaException.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/ReCaptchaException.java
@@ -23,7 +23,7 @@ package org.schabi.newpipe.extractor.exceptions;
 public class ReCaptchaException extends ExtractionException {
     private String url;
 
-    public ReCaptchaException(String message, String url) {
+    public ReCaptchaException(final String message, final String url) {
         super(message);
         this.url = url;
     }
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/SoundCloudGoPlusContentException.java b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/SoundCloudGoPlusContentException.java
index 0b00e1fa8..072624b51 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/SoundCloudGoPlusContentException.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/SoundCloudGoPlusContentException.java
@@ -5,7 +5,7 @@ public class SoundCloudGoPlusContentException extends ContentNotAvailableExcepti
         super("This track is a SoundCloud Go+ track");
     }
 
-    public SoundCloudGoPlusContentException(Throwable cause) {
+    public SoundCloudGoPlusContentException(final Throwable cause) {
         super("This track is a SoundCloud Go+ track", cause);
     }
 }
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/YoutubeMusicPremiumContentException.java b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/YoutubeMusicPremiumContentException.java
index b57debb2b..602f9e259 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/YoutubeMusicPremiumContentException.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/exceptions/YoutubeMusicPremiumContentException.java
@@ -5,7 +5,7 @@ public class YoutubeMusicPremiumContentException extends ContentNotAvailableExce
         super("This video is a YouTube Music Premium video");
     }
 
-    public YoutubeMusicPremiumContentException(Throwable cause) {
+    public YoutubeMusicPremiumContentException(final Throwable cause) {
         super("This video is a YouTube Music Premium video", cause);
     }
 }
diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeStreamExtractor.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeStreamExtractor.java
index 17e6b4bac..ffe0b04fc 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeStreamExtractor.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeStreamExtractor.java
@@ -16,6 +16,7 @@ import org.schabi.newpipe.extractor.MetaInfo;
 import org.schabi.newpipe.extractor.NewPipe;
 import org.schabi.newpipe.extractor.StreamingService;
 import org.schabi.newpipe.extractor.downloader.Downloader;
+import org.schabi.newpipe.extractor.exceptions.AgeRestrictedContentException;
 import org.schabi.newpipe.extractor.exceptions.ContentNotAvailableException;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.extractor.exceptions.GeographicRestrictionException;
@@ -735,6 +736,8 @@ public class YoutubeStreamExtractor extends StreamExtractor {
                     if (message != null && message.equals("This is a private video. Please sign in to verify that you may see it.")) {
                         throw new PrivateContentException("This video is private.");
                     }
+                } else if (reason.equals("Sign in to confirm your age") && getAgeLimit() == 18) {
+                    throw new AgeRestrictedContentException("This age-restricted video cannot be watched.");
                 }
             }
             if (status.toLowerCase().equals("unplayable")) {