<s>
Tong	B-Operating_System
Wen	I-Operating_System
Tang	I-Operating_System
(	O
)	O
is	O
a	O
Firefox	B-Operating_System
browser	I-Operating_System
extension	I-Operating_System
that	O
converts	O
Chinese-language	O
web	O
pages	O
between	O
Traditional	O
and	O
Simplified	O
Chinese	O
characters	O
.	O
</s>
<s>
According	O
to	O
records	O
in	O
forums	O
of	O
Mozilla	O
Taiwan	O
,	O
Tong	B-Operating_System
Wen	I-Operating_System
Tang	I-Operating_System
was	O
firstly	O
developed	O
by	O
Hashao	O
( 哈少	O
)	O
,	O
a	O
mainland	O
Chinese	O
netizen	O
.	O
</s>
<s>
However	O
,	O
the	O
edition	O
supported	O
only	O
the	O
Mozilla	B-Application
Firefox	I-Application
0.9	O
.	O
</s>
<s>
Softcup	O
,	O
a	O
Taiwanese	O
netizen	O
,	O
subsequently	O
developed	O
the	O
New	B-Operating_System
Tong	I-Operating_System
Wen	I-Operating_System
Tang	I-Operating_System
.	O
</s>
<s>
The	O
browser	O
extension	O
is	O
released	O
under	O
version	O
2	O
of	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
