4Chann FF Addon Issues

Hi everyone, I've got trouble using the 4chan add on for Firefox

Everytime I launch FF, it displays this message :

[Exception... "Component returned failure code: 0x80570015 (NS_ERROR_XPC_CI_RETURNED_FAILURE) [nsIJSCID.createInstance]"  nsresult: "0x80570015 (NS_ERROR_XPC_CI_RETURNED_FAILURE)"  location: "JS frame :: chrome://4chan/content/4chanOverlay.js :: chan_Init :: line 115"  data: no]

And the Add-on doesnt loads, I can only access to the options

My Infos

FF 3.6-24
Java 6 update 29

Can someone help me please ?
Thanks for reading.

OP here, it seems that disabling the Addon NOscript fixes the problem, but I need the two addons to run at the same time, any suggestions ?

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