diff --git a/README.md b/README.md
index 0afda8d..986b1aa 100644
--- a/README.md
+++ b/README.md
@@ -24,9 +24,15 @@ The first time this runs it may take a while because it will download everything
 ## Instructions
 
 ### 1. Getting cookies
-First thing to do is get your account cookies. The cookies should be in the Netscape format. You can get them by using a browser extension. These are the ones that I tested, but others may work as well...  
-- Firefox: https://addons.mozilla.org/en-US/firefox/addon/export-cookies-txt/
-- Chrome: https://chrome.google.com/webstore/detail/cookiestxt/njabckikapfpffapmjgojcnbfjonfjfg/
+First thing to do is get your account cookies. This can be done by getting a browser extension that lest you see or export your cookies.
+
+- **Method 1 (recommended)**
+    - Get the value of the cookie called `_simpleauth_sess` and pass that value using `-s "COOKIE_VALUE"`
+
+- **Method 2**
+    - Export the cookies in the Netscape format using an extension.  
+    If your exported cookie file is not working, it may be a formatting issue, this can be fixed by running the command `curl -b cookies.orig.txt --cookie-jar cookies.txt http://bogus`
+
 
 ### 2. Downloading your library
 Use the following command to download your Humble Bundle Library:  
diff --git a/humblebundle_downloader/cli.py b/humblebundle_downloader/cli.py
index b5f3e4c..5395a74 100644
--- a/humblebundle_downloader/cli.py
+++ b/humblebundle_downloader/cli.py
@@ -25,10 +25,14 @@ def cli():
         'download',
         help="Download content in your humble bundle library",
     )
-    parser_download.add_argument(
+    cookie = parser_download.add_mutually_exclusive_group(required=True)
+    cookie.add_argument(
         '-c', '--cookie-file', type=str,
         help="Location of the cookies file",
-        required=True,
+    )
+    cookie.add_argument(
+        '-s', '--session-auth', type=str,
+        help="Value of the cookie _simpleauth_sess. WRAP IN QUOTES",
     )
     parser_download.add_argument(
         '-l', '--library-path', type=str,
@@ -80,8 +84,9 @@ def cli():
         # Still keep the download action to keep compatibility
         from .download_library import DownloadLibrary
         DownloadLibrary(
-            cli_args.cookie_file,
             cli_args.library_path,
+            cookie_path=cli_args.cookie_file,
+            cookie_auth=cli_args.session_auth,
             progress_bar=cli_args.progress,
             ext_include=cli_args.include,
             ext_exclude=cli_args.exclude,
diff --git a/humblebundle_downloader/download_library.py b/humblebundle_downloader/download_library.py
index 343568e..8f95a11 100644
--- a/humblebundle_downloader/download_library.py
+++ b/humblebundle_downloader/download_library.py
@@ -23,9 +23,10 @@ def _clean_name(dirty_str):
 
 class DownloadLibrary:
 
-    def __init__(self, cookie_path, library_path, progress_bar=False,
-                 ext_include=None, ext_exclude=None, platform_include=None,
-                 purchase_keys=None, trove=False, update=False):
+    def __init__(self, library_path, cookie_path=None, cookie_auth=None,
+                 progress_bar=False, ext_include=None, ext_exclude=None,
+                 platform_include=None, purchase_keys=None, trove=False,
+                 update=False):
         self.library_path = library_path
         self.progress_bar = progress_bar
         self.ext_include = [] if ext_include is None else list(map(str.lower, ext_include))  # noqa: E501
@@ -42,14 +43,19 @@ class DownloadLibrary:
         self.update = update
 
         self.session = requests.Session()
-        try:
-            cookie_jar = http.cookiejar.MozillaCookieJar(cookie_path)
-            cookie_jar.load()
-            self.session.cookies = cookie_jar
-        except http.cookiejar.LoadError:
-            # Still support the original cookie method
-            with open(cookie_path, 'r') as f:
-                self.session.headers.update({'cookie': f.read().strip()})
+        if cookie_path:
+            try:
+                cookie_jar = http.cookiejar.MozillaCookieJar(cookie_path)
+                cookie_jar.load()
+                self.session.cookies = cookie_jar
+            except http.cookiejar.LoadError:
+                # Still support the original cookie method
+                with open(cookie_path, 'r') as f:
+                    self.session.headers.update({'cookie': f.read().strip()})
+        elif cookie_auth:
+            self.session.headers.update(
+                {'cookie': '_simpleauth_sess={}'.format(cookie_auth)}
+            )
 
     def start(self):