Quick update on this one ...
We have enabled what's called a 'persistent cookie' for the FJ Community login, should help a lot. Here's are the nerdy details...
"A cookie is a small piece of text stored on a user's computer by a web browser. It will remain remain on your hard drive until you erase it."
A persistent cookie enables us to remember you on subsequent visits, speeding up/ enhancing your Community experience.
If you are someone who regularly clears your internet cache and deletes cookies, you will have to log in after you do that, but otherwise you should remain logged in.
Let us know if this helps.