This is a marketing push disguised as an aesthetic change. Mozilla, please stop trying to make Pocket happen, it's not going to happen.
It was so bad that my main profile (with shittons of addons) at the time took about whooping ~10 seconds to cold-start.
It was not Gmail advertising that pushed people.
This is a marketing push disguised as an aesthetic change. Mozilla, please stop trying to make Pocket happen, it's not going to happen.