Every time I schedule a meeting, Mozilla Firefox opens automatically. I do not want it to do that.

Every time I press save on scheduling a meeting, Mozilla Firefox opens automatically and takes me to Gmail. I do not want it to do that.

I do not need Zoom to open my browser for me. Firstly I do not use Mozilla Firefox anyway. And I have my own system for sending out emails. This is highly irritating and there do not appear to be any standard settings that I can find that speaks to this. Please help.