<s>
Xmarks	B-Operating_System
,	O
formerly	O
Foxmarks	B-Operating_System
,	O
is	O
a	O
defunct	O
bookmark	O
synchronization	O
add-on	B-Operating_System
for	O
web	B-Application
browsers	I-Application
.	O
</s>
<s>
The	O
add-on	B-Operating_System
was	O
developed	O
by	O
San	O
Francisco-based	O
company	O
Foxmarks	B-Operating_System
(	O
later	O
renamed	O
Xmarks	B-Operating_System
)	O
which	O
was	O
founded	O
in	O
2006	O
by	O
Mitch	O
Kapor	O
and	O
was	O
acquired	O
by	O
LastPass	B-Operating_System
in	O
December	O
2010	O
.	O
</s>
<s>
LastPass	B-Operating_System
announced	O
on	O
March	O
30	O
,	O
2018	O
,	O
that	O
the	O
Xmarks	B-Operating_System
service	O
would	O
be	O
shut	O
down	O
on	O
May	O
1	O
,	O
2018	O
.	O
</s>
<s>
The	O
Xmarks	B-Operating_System
bookmark	B-Application
synchronizer	I-Application
was	O
an	O
extension	O
for	O
Mozilla	B-Application
Firefox	I-Application
,	O
Internet	B-Application
Explorer	I-Application
,	O
Google	B-Application
Chrome	I-Application
and	O
Apple	B-Application
Safari	I-Application
(	O
on	O
OS	O
X	O
10.5	O
and	O
10.6	O
)	O
that	O
synchronized	O
bookmarks	O
between	O
computers	O
.	O
</s>
<s>
It	O
could	O
also	O
synchronize	O
passwords	O
,	O
open	O
tabs	O
,	O
and	O
browsing	O
history	O
(	O
Firefox	B-Application
only	O
)	O
.	O
</s>
<s>
Opera	B-Application
support	O
has	O
not	O
been	O
directly	O
implemented	O
as	O
of	O
2015	O
but	O
the	O
Chrome	B-Application
extension	O
is	O
available	O
in	O
Opera	B-Application
via	O
a	O
workaround	O
.	O
</s>
<s>
As	O
of	O
April	O
2009	O
it	O
was	O
one	O
of	O
the	O
most	O
popular	O
Firefox	B-Operating_System
add-ons	I-Operating_System
,	O
attaining	O
over	O
150,000	O
downloads	O
per	O
week	O
and	O
almost	O
15	O
million	O
total	O
downloads	O
.	O
</s>
<s>
In	O
March	O
2009	O
,	O
Foxmarks	B-Operating_System
was	O
relaunched	O
under	O
a	O
new	O
name	O
and	O
service	O
called	O
Xmarks	B-Operating_System
.	O
</s>
<s>
Xmarks	B-Operating_System
included	O
many	O
new	O
features	O
like	O
suggested	O
tagging	O
bookmarks	O
.	O
</s>
<s>
On	O
September	O
27	O
,	O
2010	O
it	O
was	O
announced	O
that	O
due	O
to	O
the	O
company	O
's	O
current	O
financial	O
projections	O
resulting	O
from	O
its	O
purely	O
voluntary-donations	O
funding-basis	O
,	O
in	O
January	O
2011	O
,	O
Xmarks	B-Operating_System
would	O
be	O
entirely	O
discontinuing	O
its	O
service	O
.	O
</s>
<s>
On	O
September	O
30	O
,	O
Xmarks	B-Operating_System
CEO	O
,	O
James	O
Joaquin	O
,	O
noted	O
that	O
he	O
had	O
been	O
"	O
pleasantly	O
surprised	O
by	O
the	O
volume	O
of	O
interest	O
"	O
that	O
has	O
been	O
expressed	O
since	O
his	O
initial	O
"	O
closing-announcement	O
"	O
.	O
</s>
<s>
At	O
their	O
donations	O
page	O
,	O
Xmarks	B-Operating_System
attempted	O
to	O
acquire	O
pledges	O
from	O
100,000	O
of	O
their	O
users	O
to	O
pay	O
$10	O
–	O
20	O
per	O
year	O
for	O
a	O
proposed	O
"	O
premium	O
Xmarks	B-Operating_System
service	O
"	O
which	O
launched	O
on	O
December	O
9	O
,	O
2010	O
.	O
</s>
<s>
To	O
the	O
date	O
October	O
7	O
,	O
2010	O
,	O
Xmarks	B-Operating_System
investors	O
had	O
invested	O
$9	O
million	O
into	O
the	O
Xmarks	B-Operating_System
project	O
,	O
but	O
with	O
a	O
return	O
on	O
this	O
investment	O
not	O
yet	O
clearly	O
in	O
sight	O
,	O
unless	O
sufficient	O
pledges	O
are	O
received	O
by	O
October	O
15	O
,	O
2010	O
,	O
apparently	O
these	O
initial	O
investment	O
funds	O
are	O
reaching	O
an	O
end-point	O
.	O
</s>
<s>
On	O
December	O
2	O
,	O
2010	O
,	O
the	O
password-management	O
service	O
LastPass	B-Operating_System
acquired	O
Xmarks	B-Operating_System
.	O
</s>
<s>
On	O
October	O
9	O
,	O
2015	O
,	O
LastPass	B-Operating_System
was	O
acquired	O
by	O
LogMeIn	B-Application
,	I-Application
Inc	I-Application
.	I-Application
for	O
$125	O
million	O
.	O
</s>
<s>
After	O
the	O
acquisition	O
,	O
LastPass	B-Operating_System
stated	O
that	O
they	O
plan	O
to	O
continue	O
to	O
support	O
Xmarks	B-Operating_System
.	O
</s>
<s>
On	O
March	O
30	O
,	O
2018	O
,	O
in	O
an	O
email	O
to	O
users	O
,	O
LastPass	B-Operating_System
announced	O
that	O
the	O
Xmarks	B-Operating_System
service	O
would	O
be	O
shut	O
down	O
on	O
May	O
1	O
,	O
2018	O
.	O
</s>
<s>
Starting	O
in	O
May	O
2012	O
,	O
the	O
xmarks.com	O
domain	O
was	O
blocked	O
by	O
major	O
ISPs	O
in	O
India	O
by	O
court	O
order	O
,	O
resulting	O
in	O
various	O
websites	O
appearing	O
with	O
only	O
a	O
simple	O
message	O
"	O
Access	O
to	O
this	O
site	O
has	O
been	O
blocked	O
as	O
per	O
Court	O
Orders.	O
"	O
</s>
<s>
Xmarks	B-Operating_System
provided	O
an	O
option	O
to	O
encrypt	O
bookmarks	O
while	O
they	O
are	O
in	O
transit	O
between	O
the	O
browser	B-Application
and	O
the	O
Xmarks	B-Operating_System
server	O
.	O
</s>
<s>
Xmarks	B-Operating_System
did	O
provide	O
an	O
option	O
for	O
the	O
user	O
to	O
avoid	O
the	O
Xmarks	B-Operating_System
server	O
,	O
by	O
using	O
their	O
own	O
WebDAV	B-Protocol
or	O
FTP	B-Protocol
server	O
to	O
store	O
their	O
bookmarks	O
,	O
but	O
this	O
option	O
was	O
only	O
available	O
with	O
Firefox	B-Application
.	O
</s>
<s>
Bookmarks	O
were	O
analysed	O
to	O
provide	O
public	O
services	O
such	O
as	O
"	O
Suggested	O
Tags	O
"	O
and	O
"	O
Smarter	O
Search	O
"	O
(	O
Xmarks	B-Operating_System
enhancements	O
to	O
Google	O
web	O
search	O
)	O
.	O
</s>
