On 2015-03-10 09:18, David Englund wrote:
SpyBlock is a Adblock Plus fork customized for, and inbuilt, in IceCat
by my judgement of reading
https://lists.gnu.org/archive/html/bug-gnuzilla/2014-10/msg00013.html
Read the AdBlock Plus
https://en.wikipedia.org/wiki/Adblock_Plus#Controversy_over_ad_filtering_and_ad_whitelisting
to understand that SpyBlock need to be developed as a separate addon
so those who use other web browsers than IceCat can use it.
There is also a without-whitelist fork of Adblock Plus, named
HackTheWeb (free software using the modified BSD license):
https://addons.mozilla.org/en-US/firefox/addon/hack-the-web/
Not sure about the customizations used with the SpyBlock releases
included with IceCat are different respect to HackTheWeb.