I'm trying to make vF make a cookie, however it doesn't seem to work. When I 'call' the cookie, it's not there on the main page or any page that is in a board/category.

It works fine on other 'main page' pages.

And yes, it is in Global!

Any ideas why it aint working?

Check the path the cookie is being made for is "/". Because of the search engine friendly URLs then cookies could be being set for either a single topic or a single board.

It should be something like this to do it with JS:

document.cookie = 'key=value;path=/;';