<s>
Filterset.G	B-Operating_System
was	O
a	O
third-party	O
set	O
of	O
filters	O
for	O
ad	O
filtering	O
extensions	B-Operating_System
such	O
as	O
Adblock	B-Application
Plus	I-Application
used	O
with	O
Firefox	B-Application
web	I-Application
browser	I-Application
.	O
</s>
<s>
The	O
filterset	O
contained	O
pre-made	O
and	O
regularly	O
updated	O
filters	O
(	O
including	O
the	O
Adblock	B-Application
Plus	I-Application
filter	O
)	O
that	O
removed	O
ads	O
from	O
various	O
ad	O
providers	O
.	O
</s>
<s>
The	O
Filterset.G	B-Operating_System
filters	O
are	O
public	O
domain	O
(	O
CC0	O
1.0	O
)	O
.	O
</s>
<s>
Filterset.G	B-Operating_System
was	O
created	O
and	O
maintained	O
by	O
Graham	B-Operating_System
Pierce	I-Operating_System
(	O
who	O
usually	O
goes	O
by	O
the	O
name	O
"	O
Pierceive	O
"	O
or	O
"	O
G	O
"	O
)	O
.	O
</s>
<s>
A	O
companion	O
extension	O
,	O
Adblock	O
Filterset.G	B-Operating_System
Updater	O
,	O
was	O
created	O
for	O
it	O
by	O
Micheal	O
McDonald	O
and	O
Reid	O
Rankin	O
in	O
order	O
to	O
simplify	O
the	O
task	O
of	O
keeping	O
the	O
latest	O
list	O
updates	O
loaded	O
into	O
Adblock	O
,	O
which	O
did	O
not	O
contain	O
update	O
functionality	O
at	O
the	O
time	O
.	O
</s>
<s>
When	O
Adblock	B-Application
Plus	I-Application
,	O
which	O
does	O
contain	O
automatic	O
update	O
functionality	O
,	O
was	O
released	O
,	O
Graham	B-Operating_System
Pierce	I-Operating_System
decided	O
to	O
make	O
Filterset.G	B-Operating_System
incompatible	O
with	O
the	O
new	O
built-in	O
update	O
function	O
,	O
requiring	O
users	O
to	O
run	O
the	O
Adblock	O
Filterset.G	B-Operating_System
Updater	O
extension	O
to	O
use	O
his	O
filterlist	O
.	O
</s>
<s>
This	O
was	O
done	O
in	O
order	O
to	O
control	O
the	O
frequency	O
of	O
update	O
checks	O
and	O
route	O
downloads	O
through	O
the	O
Coral	O
CDN	O
,	O
in	O
order	O
to	O
prevent	O
the	O
large	O
number	O
of	O
users	O
who	O
subscribed	O
to	O
Filterset.G	B-Operating_System
from	O
overloading	O
its	O
server	O
's	O
bandwidth	O
.	O
</s>
<s>
Filterset.G	B-Operating_System
was	O
compatible	O
with	O
the	O
native	O
ad-blocking	O
facility	O
in	O
KDE	B-Application
's	O
Konqueror	B-Application
web	O
browser	O
from	O
release	O
3.5	O
onwards	O
.	O
</s>
<s>
It	O
was	O
also	O
part	O
of	O
Epiphany-extensions	O
'	O
Ad	O
Blocker	O
extension	O
for	O
GNOME	B-Application
's	O
Epiphany	B-Language
browser	I-Language
.	O
</s>
<s>
It	O
was	O
also	O
possible	O
to	O
use	O
it	O
with	O
Safari	B-Application
via	O
third-party	O
plug-ins	O
.	O
</s>
