How do I add a favicon I'm a newbie to Craft so apologies if this has been answered or is too simplistic for the forum but how do I change my site's favicon? Thank you.
Just like you would add a regular favicon just in your head.
If you want it to be an uploaded picture I would say:

Make a global and add a field like "favicon" to it and upload your image there and display it like:

{% for image in favicon.fav %}
&lt;link rel="icon" type="image/png" sizes="16x16" href="{{ image.url }}"&gt;
{% endfor %}


But what I always do is just go to a favicon generator like:
http://www.favicon-generator.org/

And upload your logo and copy paste that code in your &lt;head&gt; tags in your _layout.html file