diff --git a/main.py b/main.py
index 13a234d..f4a49ca 100644
--- a/main.py
+++ b/main.py
@@ -14,7 +14,7 @@ from selenium.webdriver.support.ui import WebDriverWait
 
 
 class BaseTester:
-    def __init__(self, user: str, passwd: str, dev: bool):
+    def __init__(self, user: str, passwd: str, dev: bool, show_browser: bool):
         self.user = user
         self.passwd = passwd
         if dev:
@@ -23,7 +23,7 @@ class BaseTester:
             self.base_url = "https://crm.caat.org.uk"
 
         firefox_options = webdriver.FirefoxOptions()
-        firefox_options.headless = True
+        firefox_options.headless = not show_browser
         self.browser = webdriver.Firefox(options=firefox_options)
         self.wait = WebDriverWait(self.browser, 20)
 
@@ -170,6 +170,13 @@ if __name__ == "__main__":
         action="store_true",
         help="Test dev site instead of production"
     )
-    parser.set_defaults(dev=False)
+    parser.add_argument(
+        "--show_browser",
+        "-s",
+        dest="show_browser",
+        action="store_true",
+        help="Show the web browser"
+    )
+    parser.set_defaults(dev=False, show_browser=False)
     arguments = parser.parse_args()
-    ContactExport(arguments.user, arguments.passwd, arguments.dev).test("John")
+    ContactExport(arguments.user, arguments.passwd, arguments.dev, arguments.show_browser).test("John")