Received an email saying I needed to change passwords--is this from Mozilla

Is this from Firefox or is it a Plish Firefox Monitor Firefox Monitor Report Report Date: February 21, 2019 Email Address: xxxxxxxx@gmail.com Your account was involved in a data breach. A recently reported data breach contains your email and the following data MyFitnessPal Breach date:January 1, 2017 Compromised accounts:143,606,147 Compromised data:Email addresses, IP addresses, Passwords, Usernames Breach data provided by Have I Been Pwned edited email from public and search/spam bots view.