try doing this
<?php
$footer = get_option('footer_options');
$footer_content = array($footer['footer_content_1'], $footer['footer_content_2']);
foreach($footer_content as $content) {
$content = apply_filters('the_content', $content);
echo'<aside class="tab-content">
'.$content.'
</aside>';
}
?>
I once had the same issue and applying the content filter solved it