Recently after updating my Firefox to the latest version (
34.0.5), I realized the user script
Amazon Reader (Look Inside) Downloader cannot work.
In order for it to function properly, I need to revert back to the older Firefox version (
33.1.1).
Warning: It is not recommended that you use the older
Firefox version. The older versions will make your computer and information venerable to security risk.
Anyway, here is where you can get the
Firefox 33.1.1 version.
http://filehippo.com/download_firefox/download/eb4910b292c1f259df1431a5644aa75b/