[Affected versions]: - Firefox 63.0.1 Build ID - 20181030165643 - Firefox 64.0b7 Build ID - 20181105164654 - Firefox 65.0a1 Build ID - 20181108220756 [Affected Platforms]: - All Windows - All Mac - All Linux [Prerequisites]: - Have a new Firefox profile. - Have the following prefs in the "about:config" page; - "browser.newtabpage.activity-stream.asrouter.messageProviders" pref set to "[{"id":"cfr", "cohort": "three_per_day", "frequency": {"custom": [{"period": "daily", "cap": 1}]}, "type":"local","localProvider":"CFRMessageProvider","enabled":true}]"; - Have 10000 frecency for the Facebook website. [Steps to reproduce]: 1. Open the browser with the profile from prerequisites and navigate to a website. 2. Open a new tab and click the Facebook Top Site. 3. Wait for the browser to start loading the website background. 4. Quickly switch to the first tab and wait for the 2nd one to fully load. 5. Observe the right part of the address bar. [Expected result]: - Nothing happens. [Actual result]: - The "CFR" recommendation is displayed. [Notes]: - The issue is reproducible with all other targeted websites. - The issue also reproducible if the "browser.newtabpage.activity-stream.asrouter.messageProviders" pref is set to "[{"id":"cfr", "cohort": "one_per_day", "frequency": {"custom": [{"period": "daily", "cap": 1}]}, "type":"local","localProvider":"CFRMessageProvider","enabled":true}]" - Attached a screen recording of the issue.

Aaron, can you see if this is ok?