firefox plug in location /download ?

Hi
The jetbrains plug in for brower can be find  for Chrome at https://chrome.google.com/webstore/detail/jetbrains-ide-support
The documentation have a link to main website not to specific page !! but i don't find it for firefox ( xpi ? )
I find https://plugins.jetbrains.com/plugin/5348?pr=phpStorm but in jetbrain repository not in mozilla  repository  https://addons.mozilla.org/en-US/firefox/ .
enter phpstorm  in search area in mozilla website but return me https://addons.mozilla.org/en-US/firefox/addon/the-easiest-xdebug/?src=search

a) Could you give me the url for jetbrain mozilla xpi ?
b) Does the plug in has a new name ?
c) in which context ( local remote link file) debug javascript work ?
....1) html static  php CMS
....2) javascript , inside 1) , link to external javascript

d) for CMS  like joomla .Does phpstorm support <?php echo $this->template ?>.  find in

<script type="text/javascript" src="<?php echo $this->baseurl ?>/templates/<?php echo $this->template ?>/js/script.js"></script>

thank's