<s>
AllPeers	B-Operating_System
was	O
a	O
free	B-Application
software	I-Application
browser	B-Protocol
extension	I-Protocol
for	O
Mozilla	B-Application
Firefox	I-Application
.	O
</s>
<s>
On	O
March	O
2	O
,	O
2008	O
,	O
AllPeers	B-Operating_System
announced	O
the	O
end	O
of	O
the	O
service	O
.	O
</s>
<s>
The	O
extension	B-Operating_System
allowed	O
building	O
a	O
social	O
network	O
and	O
sharing	O
files	O
on	O
a	O
P2P	O
basis	O
.	O
</s>
<s>
It	O
used	O
a	O
darknet	B-Operating_System
style	O
of	O
peer-to-peer	O
communication	O
;	O
files	O
and	O
information	O
shared	O
between	O
users	O
are	O
only	O
accessible	O
as	O
long	O
as	O
the	O
users	O
have	O
each	O
other	O
on	O
their	O
respective	O
access	O
lists	O
-	O
their	O
'	O
trusted	O
private	O
network	O
 '	O
.	O
</s>
<s>
AllPeers	B-Operating_System
beta	O
version	O
was	O
launched	O
on	O
August	O
24	O
,	O
2006	O
.	O
</s>
<s>
It	O
worked	O
on	O
Windows	B-Application
,	O
Linux	B-Application
and	O
Mac	B-Application
,	O
which	O
,	O
once	O
downloaded	O
,	O
becomes	O
a	O
toolbar	O
in	O
Mozilla	B-Application
Firefox	I-Application
.	O
</s>
<s>
AllPeers	B-Operating_System
used	O
open	B-Application
source	I-Application
BitTorrent	B-Protocol
technology	O
to	O
facilitate	O
file	O
transfer	O
.	O
</s>
<s>
The	O
extension	B-Operating_System
did	O
not	O
require	O
any	O
ports	O
be	O
opened	O
.	O
</s>
<s>
AllPeers	B-Operating_System
encrypted	O
its	O
communication	O
using	O
standard	O
protocols	O
like	O
SSL	B-Protocol
so	O
as	O
to	O
protect	O
the	O
user	O
against	O
3rd	O
party	O
intervention	O
listening	O
in	O
.	O
</s>
<s>
At	O
its	O
beta	O
launch	O
AllPeers	B-Operating_System
comprised	O
200,000	O
lines	O
of	O
C++	B-Language
and	O
JavaScript	B-Language
code	O
.	O
</s>
<s>
Although	O
the	O
AllPeers	B-Operating_System
client	O
was	O
open	O
sourced	O
in	O
March	O
2007	O
,	O
the	O
server	O
source	O
remains	O
closed	O
.	O
</s>
<s>
AllPeers	B-Operating_System
claimed	O
this	O
was	O
because	O
the	O
network	O
must	O
have	O
a	O
single	O
,	O
stable	O
server	O
instance	O
to	O
function	O
reliably	O
.	O
</s>
