Recently, Firefox Android started giving me Android notifications advertising Pocket. I do want *other* Firefox notifications, but I reviewed Pocket and concluded that I don't want to ever use this product. A recent example reads "Hacks to improve your work and life. Read today's trending topics on Pocket Hits on Firefox." How do I get rid of the Pocket advertising without disabling Firefox notifications completely? Deleting the Pocket extension would be great, but it's not listed in the Add-ons menu. This is Firefox 59.0.