Is it possible to load a custom template tag in base and use it in extented templates

I loaded a custom template tag note_extras.py in base.html.

base.html

<div id="wrap">
{% load note_extras %}    
{% block content %}
{% endblock %}
</div><!--wrap-->

but it is not accessible at templates which is an extend of base.html ie::

home.html

{% extends "base.html" %}
{% block content %}
<div class="container">
{% create_tagmenu request.user.pk %}
</div>
{% endblock %}

it is working fine if i load note_extras in home.html ie:

{% extends "base.html" %}
{% load note_extras %}
....