Office 365 asking for permissions to change browser settings - Lemmy.World

I have to use certain Microsoft apps for work, so I strictly only use the web versions as I am on Linux. However, just seen this setting pop up in Word while working on a document. I wonder what in specific they would change, considering i am on Firefox. Does anyone know anything about this? Is there an actual good reason for me to allow this, and if did what would it change?