Mozilla Connect

Every so often upon closing firefox 125.0.3 this error occurs:The last time I created a new profile, I lost all my data. So I would like to have the correct procedure to create a new Profile in Firefox.Or is the error a scam? 

I would like an Erase Button in the Mozilla Connect to delete items or delete All

Yesterday 5/16/24 beta update 126.ob3 was installed.It is a disaster, Many of the functions of earlier versions are missing:Being able to change how the email data is displayed, previously it was split screen.Takes 3 options to delete an email header...