--- a/testing/talos/talos/xtalos/xperf_whitelist.json
+++ b/testing/talos/talos/xtalos/xperf_whitelist.json
@@ -12,16 +12,17 @@
  "{firefox}\\browser\\features\\formautofill@mozilla.org.xpi": {"mincount": 0, "maxcount": 100, "minbytes": 0, "maxbytes": 10000000},
  "{firefox}\\browser\\features\\loop@mozilla.org.xpi": {"mincount": 0, "maxcount": 100, "minbytes": 0, "maxbytes": 10000000},
  "{firefox}\\browser\\features\\firefox@getpocket.com.xpi": {"mincount": 0, "maxcount": 100, "minbytes": 0, "maxbytes": 10000000},
  "{firefox}\\browser\\features\\presentation@mozilla.org.xpi": {"mincount": 0, "maxcount": 100, "minbytes": 0, "maxbytes": 10000000},
  "{firefox}\\browser\\features\\webcompat@mozilla.org.xpi": {"mincount": 0, "maxcount": 100, "minbytes": 0, "maxbytes": 10000000},
  "{firefox}\\browser\\features\\webcompat-reporter@mozilla.org.xpi": {"mincount": 0, "maxcount": 100, "minbytes": 0, "maxbytes": 10000000},
  "{firefox}\\browser\\features\\shield-recipe-client@mozilla.org.xpi": {"mincount": 0, "maxcount": 100, "minbytes": 0, "maxbytes": 10000000},
  "{firefox}\\browser\\features\\activity-stream@mozilla.org.xpi": {"mincount": 0, "maxcount": 100, "minbytes": 0, "maxbytes": 10000000},
+ "{firefox}\\browser\\features\\screenshots@mozilla.org.xpi": {"mincount": 0, "maxcount": 100, "minbytes": 0, "maxbytes": 10000000},
  "{talos}\\talos\\tests\\tp5n\\tp5n.manifest": {"mincount": 0, "maxcount": 8, "minbytes": 0, "maxbytes": 32786},
  "{talos}\\talos\\tests\\tp5n\\tp5n.manifest.develop": {"mincount": 0, "maxcount": 8, "minbytes": 0, "maxbytes": 32786},
  "{profile}\\localstore.rdf": {"mincount": 2, "maxcount": 2, "minbytes": 8192, "maxbytes": 8192},
  "{firefox}\\dependentlibs.list": {"mincount": 4, "maxcount": 4, "minbytes": 16384, "maxbytes": 16384},
  "{profile}\\content-prefs.sqlite": {"mincount": 6, "maxcount": 6, "minbytes": 65768, "maxbytes": 65768},
  "{profile}\\extensions.ini": {"mincount": 2, "maxcount": 2, "minbytes": 8192, "maxbytes": 8192},
  "{profile}\\extensions\\pageloader@mozilla.org\\chrome.manifest": {"mincount": 2, "maxcount": 2, "minbytes": 600, "maxbytes": 600},
  "{profile}\\extensions\\talos-powers@mozilla.org\\chrome.manifest": {"mincount": 2, "maxcount": 2, "minbytes": 600, "maxbytes": 600},