Les Bessant

gashacon

WordPress 3.5 introduced a new feature – when images are inserted into posts, the title attribute is not included in the image tag. This was done with the best of intentions relating to accessibility, as documented on <a href="https://core.trac.wordpress.org/ticket/18984" rel="nofollow ugc">Trac</a>
Unfortunately, this causes problems for some Lightbox plugins, quite apart from stopping image tooltips from appearing.
This plugin hooks into the media_send_to_editor filter and inserts the image title into the html inserted into the post.
The original author, LesBessant, sadly passed away and in the meantime the original plugin was closed. I plan to keep the plugin up to date whenever an update breaks it.

IMG Title Restore

Restores the title attribute when images are inserted into posts

flocsy

Title Icon plugin
Displays a small icon or smiley in the title. You have to add <code><?php if (function_exists('the_title_icon')) the_title_icon(); ?></code> to your index.php, single.php, page.php, archive.php 
before or after the <code><?php the_title(); ?></code>
Title Icon plugin works together with:
<ul>
<li>LMB^Box Smileys plugin (http://aboutme.lmbbox.com/lmbbox-plugins/lmbbox-smileys/)</li>
<li>Smilies Themer plugin (http://rick.jinlabs.com/code/smilies-themer/)</li>
</ul>

Title Icon

Title Icon plugin displays a small icon or smiley in the title.

IMG Title Restore vs Title Icon