How do I set my notifications ? (Browser)

The easiest way to accomplish this is to click on your Profile Picture within a Web Browser and select Notifications and select your notifications to be Emailed/In-App/Push notifications.  

You can set your space Floorworld notification preferences under "Settings" > "Notifications".

Here you can set all kinds of preferences including whether or not you want to receive (email) notifications regarding posts, spaces etc. you follow.

This is very detailed and you can finetune it to your liking. You can do the same for all spaces you are a part of at one go or go through every space and set it manually.

Don't forget to save your settings when you are done!