Environment: Operating system: Windows 10 Pro Firefox version: Firefox Nightly 66.0a1 (2018-12-11) (64-bit) Prerequisites: Enable Basic Tracking Protection Steps to reproduce: 1. Navigate to: https://www.bjs.com/product/kellogg-nutri-grain-bars-48-ct/3000000000000140865 2. Observe the layout. Expected Behavior: The webpage is successfully loaded Actual Behavior: The Top banner, Logo and other elements are missing. Notes: 1. Screenshot attached: http://prntscr.com/ltzhh9

This is related to `tpimages` breakage #1470301 Looking at the devtools console, here are the blocked resources: The resource at “https://richmedia.channeladvisor.com/ImageDelivery/imageService?profileId=52000717&imageID=12332&recipeId=243” was blocked because content blocking is enabled.[Learn More] 3000000000000140865 The resource at “https://www.googletagmanager.com/gtm.js?id=GTM-NPVD42F&gtm_auth=74J3XT5_oLiO6rlUch8RSw&gtm_preview=env-2&gtm_cookies_win=x” was blocked because content blocking is enabled.[Learn More] 3000000000000140865 So these are the domains to test: richmedia.channeladvisor.com www.googletagmanager.com I opened the URL in a fresh browser profile (Firefox Nightly 66, uMatrix installed, normal mode) and loaded the page. The page did not fully load. I disabled the Spoof Referrer option in uMatrix and then *WHITELISTED*: certona.net channeladvisor.com res-x.com After this, the page loaded. The other resources didn't help. http://prntscr.com/ltzdbx certona.net can not be found in any of the lists channeladvisor.com can be found in the disconnect-blacklist.json and disconnect-entitylist.json res-x.com can be found in the disconnect-blacklist.json and disconnect-entitylist.json So in conclusion: channeladvisor.com - Advertising = [tp-ads] res-x.com - Content = [tp-content]