Question: How can I add an icon to my Rails application (to show in tabs when opened in a browser, etc.)?

Answer: 
You can use [Favicon Rails](http://apidock.com/rails/ActionView/Helpers/AssetTagHelper/favicon_link_tag) helper:

```
<%= favicon_link_tag %>

```

Or if you want another image than favicon.ico

```
<%= favicon_link_tag 'another_image.ico' %>

```
Just so people know, the "document root" where you place your favicon.ico is the "public" folder. As a Rails newb I thought it would be in the root of the entire application. 

Also, you may have to clear your cache for it show up.