Firefox presenting wrong google account

I’m trying to log into my main Google account’s i.e. calendar, email or contacts. I’m currently logged into my main google account’s email and contacts in another 2 tabs. BUT when I try and open up new tabs and open any one of email, calendar or even contacts it tries to open them up using the new Google account I created today AND it does not offer me any options regarding the other Google accounts I have or currently am logged in, in another tab. It’s like it’s almost forgotten them and all it sees is this new Google account!! When

This is ridiculous what is the logic behind this? It’s confusing and frustrating.

I have a similar problem. My proper Gmail is open, my calendar is in another tab (not necessarily always loaded, but still) and I always have to click on the icon to change to my normal Google account whenever a Google-related link opens. This is especially annoying when following a link to add something to my calendar as it adds it to the wrong calendar