A pop-up online window to help the user. The messenger window. Chatbot for communication in the mobile smartphone app and on the website. Feedback te Stock Vector Image & Art - Alamy
Facebook Messenger Introduces New Pop-ups To Warn Users About Fake Friends And Scams / Digital Information World
Weird Facebook bug sees old chat messages pop up for users | Mashable
SOLVED] Getting Rid Of Those Annoying Facebook Messenger Pop-Ups On The Desktop Site - SocMedSean - Social Media Sean