uepselon

This plugin offers your blog visitors a <a href="http://www.foxload.com/firefox-download/" title="firefox download" rel="nofollow ugc">firefox download</a> button in different formats and colors on the sidebar.
Different banner formats and colors are included. The plugin use the wordpress locale settings for proper language versions of firefox.
You can place firefox buttons as widget and if your theme does not support widgets, you can place this <code><?php if(function_exists('get_foxload_button'))get_foxload_button(); ?></code> php code at the preferred position in your template.

Foxload Firefox Download

Offers your blog visitors a firefox download button in different formats and colors on the sidebar.

signpostmarv

This plugin provides the Mozilla Labs <a href="https://mozillalabs.com/blog/2010/03/account-manager/" rel="nofollow ugc">Account Manager</a> prototype with the data it needs to allow Firefox to log the user in and out of a WordPress blog.
When a post or page hasn’t been published, pressing Ctrl-S on your keyboard will save the page/post as draft, if it has been published, then it will be updated.
To extend the data presented in the AMC Document, play with the provided <code>mozlabs_amcd</code> filter.
<h3>To-Do</h3>
<ol>
<li>Add support for bbPress</li>
</ol>

Account Manager

Adds support for the Mozilla Labs "Account Manager" to WordPress

Foxload Firefox Download vs Account Manager