Giving that saving passwords is always a potential security threat, it would be great to have the option -- for each account configured in XN -- not to save the password. For every account where that option is activated, XN should skip the periodic check, and show the account in an inactive state (for example, in gray color) in the account list (left-click menu of the XN icon). And when the user clicks on that account in the account list, XN should asks for the password, then start doing periodic checks as usual. XN should only remember the password (somewhere in memory but nowhere on the disk) as long as the current browser session lasts. Ideally, XN should not remember the password as all if the session cookie for an account is valid indefinitely. In that case, XN can just use the password to get the cookie, then forget the password and use the cookie until the end of the browser session. Now, this is probably different for each provider and may be tricky to implement. I was a longtime user of Firefox GMail Manager by Todd Long, and it worked that way. The successor, GMail Manager NG, can be found here: https://github.com/nedwidek/firefox-gmail-manager-ng