--- a/testing/puppeteer/firefox/firefox_puppeteer/__init__.py
+++ b/testing/puppeteer/firefox/firefox_puppeteer/__init__.py
@@ -6,19 +6,16 @@ import os
 
 from marionette_driver.marionette import HTMLElement
 
 from decorators import use_class_as_property
 
 
 __version__ = '3.2.0'
 
-root = os.path.abspath(os.path.dirname(__file__))
-manifest = os.path.join(root, 'tests', 'manifest.ini')
-
 
 class Puppeteer(object):
     """The puppeteer class is used to expose libraries to test cases.
 
     Each library can be referenced by its puppeteer name as a member of a
     FirefoxTestCase instance. For example, from within a test method, the
     "current_window" member of the "Browser" class can be accessed via
     "self.browser.current_window".