This small addon will automatically refresh your online page if it is open in a tab. This is something from back in the old days of forums, and I thought it would be nice to have it available on XenForo.
There are two settings for the addon.
1) Enable the addon. You can enable/disable the addon with this option.
2) Refresh Online frequency interval. You can set the frequency to refresh the page. 30 seconds is recommended.