Steps to reproduce:
- Using a Nightly build go to about:config and set the following prefs:
browser.newtabpage.activity-stream.asrouter.devtoolsEnabled = true
browser.newtabpage.activity-stream.asrouter.providers.onboarding set to:
- Go to about:newtab#asrouter, Targeting tab and scroll to the bottom of the page
- Select Force Attribution and open a new tab with about:welcome url
Upon going to about:welcome, the first page of return to amo page should be shown (+ Add the Extension)
Restart is required each time we change the attribution, there is a high chance that this issue will not manifest in prod because only one extension will be attributed, thus the low priority.