3
It's relatively easy, but exactly what you have to do depends on which XOOPS version and theme you're using.
Make sure the theme you're using includes a line something like:
<link rel="shortcut icon" type="image/ico" href="<{xoAppUrl favicon.ico}>" />
The exact
will vary depending on the theme you're using.
For example the "default" XOOPS theme looks for this in you're root XOOPS directory (you'll see the favicon.ico file there).
The "zetagenesis" theme that comes with XOOPS 2.0.18.1 looks for this in the /themes/zetagenesis/icons directory.
To create the custom icon you'll need to either take an existing graphic and convert it or create a .ico file using some icon creation software. You can find an online tool
here.
Hope this helps...