<s>
Google	B-Protocol
Toolbar	I-Protocol
was	O
a	O
web	B-Application
browser	I-Application
toolbar	O
for	O
Internet	B-Application
Explorer	I-Application
,	O
developed	O
by	O
Google	B-Application
.	I-Application
</s>
<s>
It	O
was	O
first	O
released	O
in	O
2000	O
for	O
Internet	B-Protocol
Explorer	I-Protocol
5	I-Protocol
.	O
</s>
<s>
Google	B-Protocol
Toolbar	I-Protocol
was	O
also	O
distributed	O
as	O
a	O
Mozilla	O
plug-in	O
for	O
Firefox	B-Application
from	O
September	O
2005	O
to	O
June	O
2011	O
.	O
</s>
<s>
On	O
December	O
12	O
,	O
2021	O
,	O
the	O
software	O
was	O
no	O
longer	O
available	O
for	O
download	B-Application
,	O
and	O
the	O
website	O
now	O
redirects	O
to	O
a	O
support	O
page	O
.	O
</s>
<s>
Google	B-Protocol
Toolbar	I-Protocol
resided	O
above	O
the	O
browser	B-Application
's	O
tab	O
bar	O
and	O
provided	O
a	O
search	O
box	O
to	O
carry	O
out	O
web	B-Application
searches	I-Application
.	O
</s>
<s>
Users	O
could	O
log	O
into	O
their	O
Gmail	B-Application
accounts	O
and	O
access	O
their	O
email	O
,	O
saved	O
bookmarks	O
,	O
and	O
web	O
history	O
.	O
</s>
<s>
It	O
had	O
tools	O
such	O
as	O
AutoLink	O
,	O
AutoFill	O
,	O
Translation	B-Application
,	O
and	O
spell	O
checker	O
on	O
all	O
browsers	B-Application
.	O
</s>
<s>
The	O
pop-up	O
blocker	O
and	O
word	O
finder	O
were	O
restricted	O
to	O
Internet	B-Application
Explorer	I-Application
.	O
</s>
<s>
Google	B-Protocol
Toolbar	I-Protocol
was	O
often	O
distributed	O
through	O
product	O
bundling	O
with	O
a	O
primary	O
download	B-Application
.	O
</s>
<s>
Google	B-Application
Sidewiki	I-Application
was	O
launched	O
on	O
September	O
23	O
,	O
2009	O
,	O
allowing	O
users	O
to	O
make	O
comments	O
,	O
which	O
are	O
visible	O
to	O
the	O
public	O
,	O
on	O
any	O
web	O
page	O
.	O
</s>
<s>
Google	B-Application
uses	O
ranking	B-Algorithm
algorithms	I-Algorithm
to	O
determine	O
comment	O
relevancy	O
and	O
usefulness	O
using	O
criteria	O
such	O
as	O
users	O
voting	O
up	O
and	O
down	O
a	O
comment	O
and	O
past	O
contributions	O
.	O
</s>
<s>
Sidewiki	B-Application
is	O
currently	O
available	O
for	O
Internet	B-Application
Explorer	I-Application
and	O
Firefox	B-Application
through	O
Google	B-Protocol
Toolbar	I-Protocol
,	O
the	B-Application
Google	I-Application
Chrome	B-Application
browser	I-Application
through	O
an	O
add-on	O
,	O
and	O
for	O
other	O
browsers	B-Application
,	O
like	O
Safari	B-Application
,	O
it	O
was	O
available	O
as	O
a	O
bookmarklet	B-Language
.	O
</s>
<s>
Web	O
site	O
owners	O
could	O
not	O
control	O
Sidewiki	B-Application
comments	O
,	O
and	O
there	O
was	O
no	O
way	O
for	O
a	O
web	O
site	O
to	O
opt	O
out	O
of	O
Sidewiki	B-Application
;	O
however	O
,	O
Sidewiki	B-Application
was	O
disabled	O
on	O
secure	B-Protocol
sites	I-Protocol
.	O
</s>
<s>
In	O
September	O
2011	O
,	O
Google	B-Application
announced	O
that	O
it	O
would	O
discontinue	O
Sidewiki	B-Application
.	O
</s>
<s>
This	O
location	O
was	O
used	O
to	O
optimize	O
search	B-Application
results	I-Application
based	O
on	O
where	O
the	O
user	O
was	O
located	O
.	O
</s>
<s>
Google	B-Protocol
Toolbar	I-Protocol
can	O
also	O
provide	O
the	O
geolocation	O
data	O
to	O
third-party	O
websites	O
through	O
the	O
W3C	B-Language
Geolocation	I-Language
API	I-Language
.	O
</s>
<s>
Google	B-Protocol
Toolbar	I-Protocol
was	O
criticized	O
when	O
the	O
AutoLink	O
feature	O
was	O
added	O
to	O
the	O
toolbar	O
because	O
this	O
new	O
feature	O
directed	O
users	O
to	O
pre-selected	O
commercial	O
websites	O
.	O
</s>
<s>
For	O
example	O
,	O
if	O
it	O
finds	O
a	O
book	O
's	O
ISBN	B-Library
on	O
a	O
webpage	O
,	O
it	O
provides	O
a	O
link	O
to	O
Amazon	O
's	O
product	O
page	O
for	O
the	O
particular	O
book	O
.	O
</s>
<s>
Google	B-Application
said	O
that	O
the	O
feature	O
"	O
adds	O
useful	O
links	O
"	O
and	O
"	O
none	O
of	O
the	O
companies	O
which	O
received	O
AutoLinks	O
had	O
paid	O
for	O
the	O
service.	O
"	O
</s>
<s>
The	O
desktop	O
version	O
of	O
Google	B-Protocol
Toolbar	I-Protocol
shows	O
the	O
cached	B-Protocol
copy	I-Protocol
of	O
any	O
given	O
search	O
result	O
,	O
which	O
was	O
useful	O
for	O
slower	O
Internet	O
connections	O
and	O
benefitted	O
by	O
Google	B-Application
Web	I-Application
Accelerator	I-Application
until	O
its	O
discontinuation	O
in	O
2008	O
.	O
</s>
<s>
Google	B-Application
Watch	O
has	O
raised	O
concerns	O
about	O
Google	B-Protocol
Toolbar	I-Protocol
's	O
possible	O
threats	O
to	O
privacy	O
,	O
such	O
as	O
tracking	O
of	O
browsing	O
patterns	O
,	O
automatic	O
installation	O
of	O
updates	O
without	O
the	O
user	O
's	O
knowledge	O
,	O
and	O
a	O
privacy	O
policy	O
that	O
can	O
be	O
revised	O
without	O
notice	O
.	O
</s>
<s>
The	O
toolbar	O
does	O
not	O
track	O
personally	O
identifiable	O
surfing	O
activities	O
of	O
the	O
end	O
user	O
unless	O
advanced	O
features	O
such	O
as	O
PageRank	B-Algorithm
are	O
specifically	O
enabled	O
by	O
the	O
user	O
.	O
</s>
<s>
It	O
does	O
track	O
"	O
anonymous	O
"	O
statistics	O
,	O
which	O
can	O
reveal	O
a	O
lot	O
of	O
information	O
when	O
correlated	O
with	O
other	O
data	O
,	O
although	O
similar	O
criticisms	O
could	O
be	O
made	O
of	O
Google	B-Application
's	I-Application
online	O
search	B-Application
engine	I-Application
.	O
</s>
<s>
Google	B-Application
Compute	O
was	O
a	O
separately	O
downloadable	B-Application
add-on	O
for	O
the	B-Application
Google	I-Application
Toolbar	O
which	O
utilized	O
the	O
user	O
's	O
computer	O
to	O
help	O
the	O
Folding	B-Application
@home	I-Application
distributed	B-Architecture
computing	I-Architecture
project	O
,	O
which	O
studies	O
disease-relevant	O
protein	O
folding	O
and	O
other	O
molecular	O
dynamics	O
.	O
</s>
<s>
It	O
was	O
founded	O
in	O
March	O
2002	O
by	O
Google	B-Application
co-founder	O
Sergey	O
Brin	O
.	O
</s>
<s>
Functionally	O
,	O
it	O
downloaded	B-Application
a	O
small	O
packet	O
of	O
work	O
,	O
performed	O
calculations	O
on	O
it	O
,	O
and	O
uploaded	O
it	O
back	O
to	O
Stanford	O
University	O
.	O
</s>
<s>
On	O
December	O
12th	O
,	O
2021	O
,	O
Google	B-Protocol
Toolbar	I-Protocol
was	O
quietly	O
shut	O
down	O
by	O
Google	B-Application
.	I-Application
</s>
<s>
The	O
website	O
now	O
redirects	O
to	O
Toolbar	O
Support	O
,	O
stating	O
the	O
user	O
should	O
install	O
Google	B-Application
Chrome	I-Application
instead	O
,	O
and	O
shows	O
instructions	O
on	O
how	O
to	O
uninstall	O
Toolbar	O
for	O
those	O
on	O
Internet	B-Application
Explorer	I-Application
.	O
</s>
<s>
Computers	O
that	O
still	O
have	O
Google	B-Protocol
Toolbar	I-Protocol
are	O
not	O
affected	O
.	O
</s>
