<s>
Google	B-Operating_System
Browser	I-Operating_System
Sync	I-Operating_System
was	O
a	O
Mozilla	B-Application
Firefox	I-Application
extension	O
released	O
as	O
freeware	B-License
from	O
Google	B-Application
.	I-Application
</s>
<s>
It	O
debuted	O
in	O
Google	B-Application
Labs	I-Application
on	O
8	O
June	O
2006	O
,	O
and	O
in	O
June	O
2008	O
was	O
discontinued	O
.	O
</s>
<s>
It	O
allowed	O
users	O
of	O
Mozilla	B-Application
Firefox	I-Application
up	O
to	O
versions	O
2.x	O
to	O
synchronize	O
their	O
web	B-Application
browser	I-Application
settings	O
across	O
multiple	O
computers	O
via	O
the	O
Internet	O
.	O
</s>
<s>
Google	B-Operating_System
Browser	I-Operating_System
Sync	I-Operating_System
required	O
a	O
Google	B-Application
account	O
,	O
in	O
which	O
the	O
user	O
's	O
cookies	B-Application
,	O
saved	O
passwords	O
,	O
bookmarks	O
,	O
browsing	O
history	O
,	O
tabs	O
,	O
and	O
open	O
windows	O
could	O
be	O
stored	O
.	O
</s>
<s>
The	O
data	O
was	O
optionally	O
encrypted	O
using	O
an	O
alphanumerical	O
PIN	O
,	O
which	O
theoretically	O
prevented	O
even	O
Google	B-Application
from	O
reading	O
the	O
data	O
.	O
</s>
<s>
Passwords	O
and	O
cookies	B-Application
were	O
always	O
encrypted	O
and	O
could	O
only	O
be	O
accessed	O
by	O
the	O
user	O
.	O
</s>
<s>
Google	B-Operating_System
Browser	I-Operating_System
Sync	I-Operating_System
technology	O
was	O
integrated	O
into	O
Google	B-Application
Chrome	I-Application
.	O
</s>
