<s>
Light	O
,	O
formerly	O
known	O
as	O
Firefox	B-Protocol
Light	I-Protocol
,	O
is	O
a	O
free	B-License
and	I-License
open-source	I-License
web	B-Application
browser	I-Application
based	O
on	O
Firefox	B-Application
.	O
</s>
<s>
Light	O
is	O
available	O
for	O
the	O
Windows	B-Application
,	O
OS	B-Operating_System
X	I-Operating_System
and	O
Linux	B-Application
operating	I-Application
systems	I-Application
.	O
</s>
<s>
It	O
differs	O
from	O
Firefox	B-Application
by	O
being	O
built	O
for	O
performance	O
,	O
which	O
it	O
achieves	O
by	O
removing	O
several	O
of	O
Firefox	B-Application
's	O
built	O
in	O
components	O
,	O
including	O
the	O
crash	O
reporter	O
,	O
safe	O
browsing	O
,	O
spell	B-Application
checker	I-Application
,	O
development	B-Application
tools	I-Application
,	O
and	O
support	O
for	O
various	O
types	O
of	O
video	O
and	O
audio	O
media	O
.	O
</s>
