If you don't know what Favicon is and what is good for, just use google to find this

Favicon in e107:

The header script is looking for the favicon in this order:

1. inside theme folder 

2. inside base folder

The automatically inserted favicon should have a name:

favicon.ico

If you need to insert more favicons, you can use meta tags field in main preferences.

Change (not knowing when exactly, but it is in 2.3.3 for sure).

if you upload site-button, favicon files are generated without your control:

for all those sizes: 32,16,48,192,167,180

Then this order/priority is used:

- favicon.ico  from the theme folder

- generated files (image with name 16x16_favicon.png)

- favicon.ico from root

There is no option to set this behavior off (f.e. to use custom way from the theme.php)

How to check the version of e107:

- in the admin area, the latest icon info and information about the version is in the left column

- file ver.php, location: admin folder / ver.php

Sometimes you want a custom URL for your webpage...  for example,  yoursite.com/home/

1. create page with SEF-URL "home"  (the best is page with ID = 1)

2. associate Root namespace to "page"

3. set Frontpage to needed URL. Don't use the Custom page option.

If you select Custom Page option, content of this page will be displayed on main page (like on /index.php)