The new Pocket button intro interferes with some tests. It should be disabled by default, by setting browser.toolbarbuttons.introduced.pocket-button to true.
(In reply to Barbara Miller (:galgeek) from comment #0) It looks like it's not Pocket but rather the Reading List/Reader View intro that we ought to disable.
Created attachment 8610808 [details] [review] github pull request
https://github.com/mozilla/firefox-ui-tests/commit/594b6105b3198042288efd3e1a2c32cc7d609ae9 (master) We will have to backport this commit down to beta, which will soon be merged into release.
https://github.com/mozilla/firefox-ui-tests/commit/ba0dcf082a5d02f3e718550b8876d7f4052e5f1e (aurora) https://github.com/mozilla/firefox-ui-tests/commit/bcd897d1b7903c9df6071aef7347bbb50db22618 (beta) mozilla-release and mozilla-esr38 branches got rebased against beta, so they have the same changeset.
Comment on attachment 8610808 [details] [review] github pull request Missed to set the r+ flag when I reviewed the patch.