diff --git a/gallery_dl/extractor/common.py b/gallery_dl/extractor/common.py
index 0fa40ef0..b43a2edd 100644
--- a/gallery_dl/extractor/common.py
+++ b/gallery_dl/extractor/common.py
@@ -9,6 +9,7 @@
 """Common classes and constants used by extractor modules."""
 
 import os
+import re
 import time
 import netrc
 import queue
@@ -186,6 +187,13 @@ def safe_request(session, url, method="GET", *args, **kwargs):
         return r
 
 
+# Reduce strictness of the expected magic string in cookie jar files.
+# (This allows the use of Wget-generated cookiejar files without modification)
+
+http.cookiejar.MozillaCookieJar.magic_re = re.compile(
+    "#( Netscape)? HTTP Cookie File", re.IGNORECASE)
+
+
 # The first import of requests happens inside this file.
 # If we are running on Windows and the from requests expected certificate file
 # is missing (which happens in a standalone executable from py2exe), the