This isn't a setting, sounds like you might have a browser plugin doing something?
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Ok, good to know, thanks!
It doesn’t seem likely to be a browser addon because if it were, I’d expect it to have the same effect on other sites and I don’t get logged out after 1 week on any other accounts.
I’ll see if the same thing happens when I log in on a different Firefox profiles and browsers.
I haven't had this issue, but I do visit the site every 1-2 days.
Count yourself lucky, I get logged out any time I refresh (click the browser button or hit f5) or restart Firefox on one of my Debian machines.