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My only question would be, if you can remove the cookie cruller for which this is an 'update'. That might be in the description of this add-on. But as to the functionality, it is terrific. Thanks

Questa recensione riguarda una versione precedente (1.8.5.1-signed.1-let-fixed) del componente aggiuntivo. 

Hi,

Remove another add-on when you install one may be a bad idea. Plus I am not sure that Mozilla will accept this feature. I just propose to migrate CookieCuller options, on install. I think it is sufficient. CookieCuller is now very old, and may have completely stop working now.
You can remove obsolete add-on easily yourself with the "about:addons" page ;-)