diff --git a/brozzler/cli.py b/brozzler/cli.py
index cf0373b..88c92cf 100755
--- a/brozzler/cli.py
+++ b/brozzler/cli.py
@@ -120,8 +120,12 @@ def brozzle_page():
             '-e', '--chrome-exe', dest='chrome_exe',
             default=suggest_default_chrome_exe(),
             help='executable to use to invoke chrome')
-    arg_parser.add_argument('--behavior-parameters', dest='behavior_parameters',
-                            default=None, help='json blob of parameters to populate the javascript behavior template, e.g. {"parameter_username":"x","parameter_password":"y"}')
+    arg_parser.add_argument(
+            '--behavior-parameters', dest='behavior_parameters',
+            default=None, help=(
+                'json blob of parameters to populate the javascript behavior '
+                'template, e.g. {"parameter_username":"x",'
+                '"parameter_password":"y"}'))
     arg_parser.add_argument(
             '--proxy', dest='proxy', default=None,
             help='http proxy')
@@ -135,12 +139,13 @@ def brozzle_page():
     args = arg_parser.parse_args(args=sys.argv[1:])
     _configure_logging(args)
 
-    metadata = {}
+    behavior_parameters = {}
     if args.behavior_parameters:
-        metadata["behavior_parameters"] = json.loads(args.behavior_parameters)
+        behavior_parameters = json.loads(args.behavior_parameters)
     site = brozzler.Site(
             id=-1, seed=args.url, proxy=args.proxy,
-            metadata=metadata, enable_warcprox_features=args.enable_warcprox_features)
+            enable_warcprox_features=args.enable_warcprox_features,
+            behavior_parameters=behavior_parameters)
     page = brozzler.Page(url=args.url, site_id=site.id)
     worker = brozzler.BrozzlerWorker(frontier=None)
 
diff --git a/brozzler/job_schema.yaml b/brozzler/job_schema.yaml
index 4bea483..a7f3d8e 100644
--- a/brozzler/job_schema.yaml
+++ b/brozzler/job_schema.yaml
@@ -69,6 +69,9 @@ id:
   user_agent:
     type: string
 
+  behavior_parameters:
+    type: dict
+
 seeds:
   type: list
   required: true
diff --git a/brozzler/site.py b/brozzler/site.py
index 1dcd90f..5cccac8 100644
--- a/brozzler/site.py
+++ b/brozzler/site.py
@@ -96,7 +96,7 @@ class Site(brozzler.BaseDictable):
             status="ACTIVE", claimed=False, start_time=None,
             last_disclaimed=_EPOCH_UTC, last_claimed_by=None,
             last_claimed=_EPOCH_UTC, metadata={}, remember_outlinks=None,
-            cookie_db=None, user_agent=None):
+            cookie_db=None, user_agent=None, behavior_parameters=None):
 
         self.seed = seed
         self.id = id
@@ -117,6 +117,7 @@ class Site(brozzler.BaseDictable):
         self.remember_outlinks = remember_outlinks
         self.cookie_db = cookie_db
         self.user_agent = user_agent
+        self.behavior_parameters = behavior_parameters
 
         self.scope = scope or {}
         if not "surt" in self.scope:
diff --git a/brozzler/worker.py b/brozzler/worker.py
index 6fc8e32..ea6b5ec 100644
--- a/brozzler/worker.py
+++ b/brozzler/worker.py
@@ -269,17 +269,11 @@ class BrozzlerWorker:
 
         if self._needs_browsing(page, ydl_spy):
             self.logger.info('needs browsing: %s', page)
-            behavior_parameters = {}
-            if "login" in site.metadata:
-                behavior_parameters["parameter_username"] = site.metadata["login"]["username"]
-                behavior_parameters["parameter_password"] = site.metadata["login"]["password"]
-            if "behavior_parameters" in site.metadata:
-                behavior_parameters.update(site.metadata["behavior_parameters"])
             if not browser.is_running():
                 browser.start(proxy=self._proxy(site), cookie_db=site.cookie_db)
             outlinks = browser.browse_page(
                     page.url, extra_headers=site.extra_headers(),
-                    behavior_parameters=behavior_parameters,
+                    behavior_parameters=site.behavior_parameters,
                     user_agent=site.user_agent,
                     on_screenshot=_on_screenshot,
                     on_url_change=page.note_redirect)
diff --git a/setup.py b/setup.py
index 4fcf4a7..ea86dab 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@ def find_package_data(package):
 
 setuptools.setup(
         name='brozzler',
-        version='1.1b7.dev112',
+        version='1.1b7.dev113',
         description='Distributed web crawling with browsers',
         url='https://github.com/internetarchive/brozzler',
         author='Noah Levitt',