diff --git a/firefox/oabutton_firefox_4.2.0.xpi b/firefox/oabutton_firefox_4.2.2.xpi
similarity index 80%
rename from firefox/oabutton_firefox_4.2.0.xpi
rename to firefox/oabutton_firefox_4.2.2.xpi
index df9747d..94e43c0 100644
Binary files a/firefox/oabutton_firefox_4.2.0.xpi and b/firefox/oabutton_firefox_4.2.2.xpi differ