Hello, It seems that Firefox for Android does not send a domain's cookie(s) when launching the browser from a shortcut on the home screen. From the next request on, now having an open Firefox tab, the cookie(s) are sent and valid and all is well. Firefox desktop does not suffer from this issue; when fully closed and then reopened, the domain's cookie(s) are sent from the first request on. I have dug into the issue using remote debugging. On my desktop system, I host a PHP web application having stepped debugging enabled. I can see that upon the first request from the Android device, $_COOKIE is an empty array. Upon every next request, it is properly populated with the cookies I require for the app to work. Is this normal behavior? Or should the cookie have a special attribute (besides its expiry datetime) set, to be sent from the first request on? Any help would be greatly appreciated. Kind regards, FWieP