Since sendRequest and onRequest APIs are deprecated, ChromeMigemo and other extensions that talks to this are deprecated.
Please take a look at a fork of this extension: [Migemo Server for Google Chrome™](chrome.google.com/webstore/detail/migemo-server-for-google/dfccgbheolnlopfmahkcjiefggclmadb/)
Migemo is an ambiguous search query generator. This extension is a Migemo server for Chrome, which itself does not provide any end-user interface, but intended to be used by other extensions.
Atsushi TAKAYAMA (@edvakf on twitter)
Copyright © 2009 Atsushi TAKAYAMA
This extension including the dictionary files are distributed under the GNU General Public License (see the file src/license/GPL).
However, the original source code of part of the files are available under the MIT license (see the file src/license/MIT), namely;
jsdeferred-migemo.js and it's config <github.com/edvakf/JSDeferred-Migemo>
I'd like to thank;
<www.blogperfume.com/free-glossy-blogging-icons-set-for-bloggers/> for the cute free icons, and
the SKK project <openlab.jp/skk/wiki/wiki.cgi?page=SKK%BC%AD%BD%F1>
for the dictionary.