<s>
Google	B-Operating_System
Chrome	I-Operating_System
Frame	I-Operating_System
was	O
a	O
plug-in	B-Application
designed	O
for	O
Internet	B-Application
Explorer	I-Application
based	O
on	O
the	O
open-source	O
Chromium	B-Language
project	I-Language
,	O
first	O
announced	O
on	O
September	O
22	O
,	O
2009	O
.	O
</s>
<s>
The	O
plug-in	B-Application
worked	O
with	O
Internet	B-Application
Explorer	I-Application
6	I-Application
,	O
7	B-Application
,	O
8	B-Application
and	O
9	B-Application
.	O
</s>
<s>
It	O
allowed	O
suitably	O
coded	O
web	O
pages	O
to	O
be	O
displayed	O
in	O
Internet	B-Application
Explorer	I-Application
by	O
Google	B-Application
Chrome	I-Application
's	O
versions	O
of	O
the	O
WebKit	B-Language
layout	B-Protocol
engine	I-Protocol
and	O
V8	B-Language
JavaScript	I-Language
engine	I-Language
.	O
</s>
<s>
In	O
a	O
test	O
by	O
Computerworld	O
,	O
JavaScript	B-Language
code	O
ran	O
10	O
times	O
faster	O
with	O
the	O
plug-in	B-Application
on	O
Internet	B-Application
Explorer	I-Application
8	I-Application
.	O
</s>
<s>
Development	O
of	O
Google	B-Operating_System
Chrome	I-Operating_System
Frame	I-Operating_System
was	O
required	O
in	O
order	O
for	O
Google	B-Application
Wave	I-Application
(	O
now	O
Apache	B-Application
Wave	I-Application
)	O
,	O
which	O
requires	O
HTML5	B-Application
,	O
to	O
function	O
in	O
Internet	B-Application
Explorer	I-Application
.	O
</s>
<s>
The	O
first	O
stable	O
version	O
supporting	O
Non-Admin	O
Chrome	B-Operating_System
Frame	I-Operating_System
was	O
rolled	O
out	O
on	O
August	O
30	O
,	O
2011	O
.	O
</s>
<s>
The	O
newer	O
Chrome	B-Operating_System
Frame	I-Operating_System
installer	O
ran	O
at	O
Admin	O
level	O
by	O
default	O
and	O
fell	O
back	O
to	O
Non-Admin	O
mode	O
if	O
the	O
user	O
did	O
n't	O
have	O
the	O
necessary	O
permissions	O
on	O
their	O
machine	O
.	O
</s>
<s>
Web	O
developers	O
can	O
allow	O
their	O
websites	O
to	O
use	O
the	O
plug-in	B-Application
by	O
using	O
the	O
following	O
code	O
on	O
their	O
web	O
pages	O
:	O
</s>
<s>
This	O
will	O
cause	O
the	O
page	O
to	O
render	O
in	O
Chrome	B-Operating_System
Frame	I-Operating_System
for	O
users	O
who	O
have	O
it	O
installed	O
,	O
without	O
changing	O
it	O
for	O
users	O
who	O
have	O
not	O
.	O
</s>
<s>
In	O
February	O
2010	O
,	O
Google	B-Operating_System
Chrome	I-Operating_System
Frame	I-Operating_System
was	O
updated	O
to	O
also	O
support	O
deployment	O
by	O
HTTP	O
headers	O
,	O
with	O
a	O
number	O
of	O
advantages	O
,	O
such	O
as	O
simplified	O
sitewide	O
support	O
and	O
support	O
of	O
the	O
application/xhtml	O
+xml	O
MIME	O
type	O
even	O
on	O
Internet	B-Application
Explorer	I-Application
which	O
normally	O
does	O
not	O
support	O
this	O
MIME	O
type	O
for	O
XHTML	O
documents	O
.	O
</s>
<s>
Internet	B-Application
Explorer	I-Application
add-ons	I-Application
do	O
not	O
function	O
on	O
pages	O
rendered	O
using	O
WebKit	B-Language
.	O
</s>
<s>
There	O
has	O
been	O
criticism	O
concerning	O
Chrome	B-Operating_System
Frame	I-Operating_System
from	O
Mozilla	B-Operating_System
and	O
Microsoft	O
as	O
Chrome	B-Operating_System
Frame	I-Operating_System
"	O
can	O
disable	O
IE	O
features	O
and	O
muddle	O
users	O
 '	O
understanding	O
of	O
Web	O
security	O
matters	O
"	O
.	O
</s>
<s>
With	O
Google	B-Operating_System
Chrome	I-Operating_System
Frame	I-Operating_System
installed	O
,	O
users	O
can	O
add	O
the	O
gcf	O
:	O
prefix	O
to	O
URLs	O
to	O
render	O
them	O
with	O
WebKit	B-Language
and	O
V8	B-Language
instead	O
of	O
Internet	B-Application
Explorer	I-Application
's	O
built-in	O
Trident	B-Application
engine	O
after	O
enabling	O
this	O
feature	O
via	O
a	O
registry	O
setting	O
.	O
</s>
<s>
An	O
update	O
also	O
brought	O
the	O
possibility	O
to	O
navigate	O
pages	O
in	O
IE	O
utilising	O
WebKit/V8	O
without	O
the	O
gcf	O
:	O
prefix	O
:	O
</s>
<s>
Google	B-Operating_System
Chrome	I-Operating_System
Frame	I-Operating_System
communicated	O
with	O
Google	B-Application
's	I-Application
servers	O
:	O
it	O
reported	O
installation	O
to	O
Google	B-Application
,	O
downloaded	O
updates	O
to	O
Chrome	B-Operating_System
Frame	I-Operating_System
and	O
Google	B-Application
's	I-Application
Safe	I-Application
Browsing	I-Application
list	O
,	O
and	O
at	O
the	O
user	O
's	O
discretion	O
could	O
send	O
Google	B-Application
usage	O
statistics	O
and	O
crash	B-Operating_System
reports	I-Operating_System
.	O
</s>
