diff --git a/brozzler/browser.py b/brozzler/browser.py
index 9442d92..5c06359 100644
--- a/brozzler/browser.py
+++ b/brozzler/browser.py
@@ -376,7 +376,7 @@ class Browser:
         return self.websock_url is not None
 
     def browse_page(
-            self, page_url, ignore_cert_errors=False, extra_headers=None,
+            self, page_url, extra_headers=None,
             user_agent=None, behavior_parameters=None,
             on_request=None, on_response=None, on_screenshot=None,
             username=None, password=None, hashtags=None,
diff --git a/brozzler/worker.py b/brozzler/worker.py
index 3169e47..56cf93b 100644
--- a/brozzler/worker.py
+++ b/brozzler/worker.py
@@ -316,30 +316,34 @@ class BrozzlerWorker:
 
         return full_jpeg, thumb_jpeg
 
-    def brozzle_page(self, browser, site, page, on_screenshot=None):
+    def brozzle_page(self, browser, site, page, on_screenshot=None,
+                     enable_youtube_dl=True):
         self.logger.info("brozzling {}".format(page))
-        try:
-            with tempfile.TemporaryDirectory(prefix='brzl-ydl-') as tempdir:
-                ydl = self._youtube_dl(tempdir, site)
-                ydl_spy = ydl.brozzler_spy # remember for later
-                self._try_youtube_dl(ydl, site, page)
-        except brozzler.ReachedLimit as e:
-            raise
-        except brozzler.ShutdownRequested:
-            raise
-        except brozzler.ProxyError:
-            raise
-        except Exception as e:
-            if (hasattr(e, 'exc_info') and len(e.exc_info) >= 2
-                    and hasattr(e.exc_info[1], 'code')
-                    and e.exc_info[1].code == 430):
-                self.logger.info(
-                        'youtube-dl got %s %s processing %s',
-                        e.exc_info[1].code, e.exc_info[1].msg, page.url)
-            else:
-                self.logger.error(
-                        'youtube_dl raised exception on %s', page,
-                        exc_info=True)
+        if enable_youtube_dl:
+            try:
+                with tempfile.TemporaryDirectory(prefix='brzl-ydl-') as tempdir:
+                    ydl = self._youtube_dl(tempdir, site)
+                    ydl_spy = ydl.brozzler_spy # remember for later
+                    self._try_youtube_dl(ydl, site, page)
+            except brozzler.ReachedLimit as e:
+                raise
+            except brozzler.ShutdownRequested:
+                raise
+            except brozzler.ProxyError:
+                raise
+            except Exception as e:
+                if (hasattr(e, 'exc_info') and len(e.exc_info) >= 2
+                        and hasattr(e.exc_info[1], 'code')
+                        and e.exc_info[1].code == 430):
+                    self.logger.info(
+                            'youtube-dl got %s %s processing %s',
+                            e.exc_info[1].code, e.exc_info[1].msg, page.url)
+                else:
+                    self.logger.error(
+                            'youtube_dl raised exception on %s', page,
+                            exc_info=True)
+        else:
+            ydl_spy = False
 
         if self._needs_browsing(page, ydl_spy):
             self.logger.info('needs browsing: %s', page)
@@ -435,19 +439,23 @@ class BrozzlerWorker:
                     'proxy error fetching %s' % page.url) from e
 
     def _needs_browsing(self, page, brozzler_spy):
-        final_bounces = brozzler_spy.final_bounces(page.url)
-        if not final_bounces:
-            return True
-        for txn in final_bounces:
-            if txn['response_headers'].get_content_type() in [
-                    'text/html', 'application/xhtml+xml']:
+        if brozzler_spy:
+            final_bounces = brozzler_spy.final_bounces(page.url)
+            if not final_bounces:
                 return True
-        return False
+            for txn in final_bounces:
+                if txn['response_headers'].get_content_type() in [
+                        'text/html', 'application/xhtml+xml']:
+                    return True
+            return False
+        else:
+            return True
 
     def _already_fetched(self, page, brozzler_spy):
-        for txn in brozzler_spy.final_bounces(page.url):
-            if (txn['method'] == 'GET' and txn['status_code'] == 200):
-                return True
+        if brozzler_spy:
+            for txn in brozzler_spy.final_bounces(page.url):
+                if (txn['method'] == 'GET' and txn['status_code'] == 200):
+                    return True
         return False
 
     def brozzle_site(self, browser, site):
diff --git a/setup.py b/setup.py
index 743bccb..f9ab4e2 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@ def find_package_data(package):
 
 setuptools.setup(
         name='brozzler',
-        version='1.1b12.dev265',
+        version='1.1b12.dev266',
         description='Distributed web crawling with browsers',
         url='https://github.com/internetarchive/brozzler',
         author='Noah Levitt',