NOTE: I do NOT speak for or represent Amazon in any fashion. This is a customer to customer forum.
Disclaimer: I have examined any sites I provide links for and have determined them to be safe but I make no promises about safety, content, ads served or anything that might make you clutch your pearls in horror. Use discretion clicking on links provided by total strangers such as myself.
I never sign out & the Fires are rarely turned off - just sleeping.
Is there something else that will result in being signed out?
No issues staying logged in on my laptop (Firefox). Intentionally log in and out quite often on my android tablet (Chrome browser) but only do so because any 'Latest Threads' posts, beyond page 1, load with fewer issues if I'm logged out.