Created attachment 676534 [details] screenshot The homepage of https://builder-addons-dev.allizom.org/ doesn't show the "Browse Add-ons" and "Browse Libraries" sections. The fails started in this Jenkins run: http://qa-selenium.mv.mozilla.com:8080/job/flightdeck.dev/555/
Looks like the flightdeck_dev ES Index mapping was not correct. This might be due to the index being created without running 'setup_mapping'. I recreated the index and it seems fixed now.
Verified FIXED: http://qa-selenium.mv.mozilla.com:8080/view/Flightdeck/job/flightdeck.dev.saucelabs/HTML_Report/? 18 tests ran in 197 seconds. 8 passed, 0 skipped, 0 failed, 0 errors. 1 expected failures, 9 unexpected passes.