<s>
Web	B-Operating_System
Developer	I-Operating_System
is	O
an	O
extension	B-Operating_System
for	O
Mozilla-based	O
web	B-Application
browsers	I-Application
that	O
adds	O
editing	O
and	O
debugging	O
tools	O
for	O
web	B-Operating_System
developers	I-Operating_System
.	O
</s>
<s>
It	O
has	O
been	O
tested	O
to	O
be	O
compatible	O
with	O
Firefox	B-Application
,	O
Flock	B-Protocol
,	O
and	O
Seamonkey	B-Language
.	O
</s>
<s>
The	O
extension	B-Operating_System
was	O
developed	O
by	O
Chris	O
Pederick	O
,	O
who	O
has	O
also	O
authored	O
the	O
User	O
Agent	O
Switcher	O
extension	B-Operating_System
.	O
</s>
<s>
Web	B-Operating_System
Developer	I-Operating_System
was	O
a	O
grand	O
prize	O
winner	O
in	O
Mozilla	B-Operating_System
's	O
2006	O
"	O
Extend	O
Firefox	B-Application
"	O
competition	O
and	O
it	O
is	O
one	O
of	O
the	O
few	O
extensions	O
specifically	O
recommended	O
by	O
Firefox	B-Application
developers	O
for	O
web	O
development	O
.	O
</s>
