<s>
Mozilla	B-Language
Firefox	I-Language
3.0	I-Language
is	O
a	O
version	O
of	O
the	O
Firefox	B-Application
web	I-Application
browser	I-Application
released	O
on	O
June	O
17	O
,	O
2008	O
,	O
by	O
the	O
Mozilla	B-Operating_System
Corporation	O
.	O
</s>
<s>
Firefox	B-Language
3.0	I-Language
uses	O
version	O
1.9	O
of	O
the	O
Gecko	B-Language
layout	I-Language
engine	I-Language
for	O
displaying	O
web	O
pages	O
.	O
</s>
<s>
This	O
version	O
fixes	O
many	O
bugs	O
,	O
improves	O
standards	O
compliance	O
,	O
and	O
implements	O
many	O
new	O
web	O
APIs	B-Application
compared	O
to	O
Firefox	B-Language
2.0	I-Language
.	O
</s>
<s>
Other	O
new	O
features	O
include	O
a	O
redesigned	O
download	B-Protocol
manager	I-Protocol
,	O
a	O
new	O
"	O
Places	O
"	O
system	O
for	O
storing	O
bookmarks	O
and	O
history	B-Protocol
,	O
and	O
separate	O
themes	B-Application
for	O
different	O
operating	B-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
Firefox	B-Language
3.0	I-Language
had	O
over	O
8	O
million	O
unique	O
downloads	O
the	O
day	O
it	O
was	O
released	O
,	O
and	O
by	O
July	O
2008	O
held	O
over	O
5.6	O
%	O
of	O
the	O
recorded	O
usage	B-Application
share	I-Application
of	I-Application
web	I-Application
browsers	I-Application
.	O
</s>
<s>
Estimates	O
of	O
Firefox	B-Language
3.0	I-Language
'	O
s	O
global	O
market	O
share	O
were	O
generally	O
in	O
the	O
range	O
of	O
4	O
–	O
5%	O
,	O
and	O
then	O
dropped	O
as	O
users	O
migrated	O
to	O
Firefox	B-Language
3.5	I-Language
and	O
later	O
Firefox	B-Protocol
3.6	I-Protocol
.	O
</s>
<s>
Partially	O
as	O
a	O
result	O
of	O
this	O
,	O
between	O
mid-December	O
2009	O
and	O
the	O
end	O
of	O
January	O
2010	O
,	O
Firefox	B-Language
3.5	I-Language
was	O
the	O
most	O
popular	O
browser	B-Application
(	O
when	O
counting	O
individual	O
browser	B-Application
versions	O
)	O
,	O
passing	O
Internet	B-Application
Explorer	I-Application
7	I-Application
.	O
</s>
<s>
Mozilla	B-Operating_System
ended	O
support	O
for	O
Firefox	B-Language
3	I-Language
on	O
March	O
30	O
,	O
2010	O
,	O
with	O
the	O
release	O
of	O
3.0.19	O
.	O
</s>
<s>
Firefox	B-Language
3.0	I-Language
was	O
developed	O
under	O
the	O
codename	O
Gran	O
Paradiso	O
.	O
</s>
<s>
This	O
,	O
like	O
other	O
Firefox	B-Application
codenames	O
,	O
is	O
the	O
name	O
of	O
an	O
actual	O
place	O
;	O
in	O
this	O
case	O
the	O
seventh-highest	O
mountain	O
in	O
the	O
Graian	O
Alps	O
where	O
they	O
first	O
came	O
up	O
with	O
the	O
idea	O
.	O
</s>
<s>
Planning	O
began	O
in	O
October	O
2006	O
,	O
when	O
the	O
development	O
team	O
asked	O
users	O
to	O
submit	O
feature	O
requests	O
that	O
they	O
wished	O
to	O
be	O
included	O
in	O
Firefox	B-Language
3	I-Language
.	O
</s>
<s>
The	B-Operating_System
Mozilla	I-Operating_System
Foundation	I-Operating_System
released	O
the	O
first	O
beta	O
on	O
November	O
19	O
,	O
2007	O
,	O
the	O
second	O
beta	O
on	O
December	O
18	O
,	O
2007	O
,	O
the	O
third	O
beta	O
on	O
February	O
12	O
,	O
2008	O
,	O
the	O
fourth	O
beta	O
on	O
March	O
10	O
,	O
2008	O
,	O
and	O
the	O
fifth	O
and	O
final	O
beta	O
on	O
April	O
2	O
,	O
2008	O
.	O
</s>
<s>
Mozilla	B-Operating_System
shipped	O
the	O
final	O
release	O
on	O
June	O
17	O
,	O
2008	O
.	O
</s>
<s>
On	O
its	O
release	O
date	O
,	O
Firefox	B-Language
3	I-Language
was	O
featured	O
in	O
popular	O
culture	O
,	O
mentioned	O
on	O
The	O
Colbert	O
Report	O
,	O
among	O
others	O
.	O
</s>
<s>
One	O
of	O
the	O
big	O
changes	O
in	O
Firefox	B-Language
3	I-Language
is	O
the	O
implementation	O
of	O
Gecko	B-Language
1.9	I-Language
,	O
an	O
updated	O
layout	B-Protocol
engine	I-Protocol
.	O
</s>
<s>
The	O
new	O
version	O
fixes	O
many	O
bugs	O
,	O
improves	O
standard	O
compliance	O
,	O
and	O
implements	O
new	O
web	O
APIs	B-Application
.	O
</s>
<s>
In	O
particular	O
,	O
it	O
makes	O
Firefox	B-Language
3	I-Language
the	O
first	O
official	O
release	O
of	O
a	O
Mozilla	B-Operating_System
browser	B-Application
to	O
pass	O
the	O
Acid2	O
test	O
,	O
a	O
standards-compliance	O
test	O
for	O
web-page	O
rendering	O
.	O
</s>
<s>
It	O
also	O
receives	O
a	O
better	O
score	O
on	O
the	O
Acid3	O
test	O
than	O
Firefox	B-Language
2	I-Language
.	O
</s>
<s>
Some	O
of	O
the	O
new	O
features	O
are	O
defined	O
in	O
the	O
WHATWG	B-Language
HTML	B-Application
5	I-Application
specification	O
,	O
such	O
as	O
support	O
for	O
web-based	O
protocol	O
handlers	O
,	O
a	O
native	O
implementation	O
of	O
the	O
getElementsByClassName	O
method	O
,	O
support	O
for	O
safe	O
message-passing	O
with	O
postMessage	O
,	O
and	O
support	O
for	O
offline	O
web	O
applications	O
.	O
</s>
<s>
Other	O
new	O
features	O
include	O
APNG	O
support	O
,	O
and	O
EXSLT	B-Language
support	O
.	O
</s>
<s>
A	O
new	O
internal	O
memory	B-Language
allocator	I-Language
,	O
jemalloc	O
,	O
is	O
used	O
rather	O
than	O
the	O
default	O
libc	B-Language
one	O
.	O
</s>
<s>
Gecko	B-Language
1.9	I-Language
uses	O
Cairo	B-Language
as	O
a	O
graphics	O
backend	B-Architecture
,	O
allowing	O
for	O
improved	O
graphics	O
performance	O
and	O
better	O
consistency	O
of	O
the	O
look	O
and	O
feel	O
on	O
various	O
operating	B-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
Because	O
of	O
Cairo	B-Language
's	O
lack	O
of	O
support	O
for	O
Windows	B-Application
95	I-Application
,	O
Windows	B-Device
98	I-Device
,	O
Windows	B-Device
ME	I-Device
,	O
and	O
Windows	B-Device
NT	I-Device
(	O
versions	O
4.0	B-Device
and	O
below	O
)	O
,	O
and	O
because	O
Microsoft	O
ended	O
support	O
for	O
Windows	B-Device
98	I-Device
and	O
Windows	B-Device
ME	I-Device
on	O
July	O
11	O
,	O
2006	O
,	O
Firefox	B-Language
3	I-Language
does	O
not	O
run	O
on	O
those	O
operating	B-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
Similarly	O
,	O
the	O
Mac	O
version	O
of	O
Firefox	B-Language
3	I-Language
runs	O
only	O
on	O
Mac	O
OS	O
X	O
10.4	O
or	O
higher	O
,	O
but	O
,	O
unlike	O
previous	O
versions	O
,	O
has	O
a	O
native	O
Cocoa	B-Operating_System
widget	O
interface	O
.	O
</s>
<s>
As	O
for	O
the	O
frontend	B-Architecture
changes	O
,	O
Firefox	B-Application
features	O
a	O
redesigned	O
download	B-Protocol
manager	I-Protocol
with	O
built-in	O
search	O
and	O
the	O
ability	O
to	O
resume	O
downloads	O
.	O
</s>
<s>
Also	O
,	O
a	O
new	O
plug-in	O
manager	O
is	O
included	O
in	O
the	O
add-ons	O
window	O
and	O
extensions	O
can	O
be	O
installed	O
with	O
a	O
package	B-Application
manager	I-Application
.	O
</s>
<s>
Microformats	B-General_Concept
are	O
supported	O
for	O
use	O
by	O
software	O
that	O
can	O
understand	O
their	O
use	O
in	O
documents	O
to	O
store	O
data	O
in	O
a	O
machine-readable	O
form	O
.	O
</s>
<s>
The	O
password	O
manager	O
in	O
Firefox	B-Language
3	I-Language
asks	O
the	O
user	O
if	O
they	O
would	O
like	O
it	O
to	O
remember	O
the	O
password	O
after	O
the	O
login	B-General_Concept
attempt	O
rather	O
than	O
before	O
.	O
</s>
<s>
By	O
doing	O
this	O
users	O
are	O
able	O
to	O
avoid	O
storing	O
an	O
incorrect	O
password	O
in	O
the	O
password	O
manager	O
after	O
a	O
bad	O
login	B-General_Concept
attempt	O
.	O
</s>
<s>
Firefox	B-Language
3	I-Language
uses	O
a	O
"	O
Places	O
"	O
system	O
for	O
storing	O
bookmarks	O
and	O
history	B-Protocol
in	O
an	O
SQLite	B-Language
backend	B-Architecture
.	O
</s>
<s>
The	O
new	O
system	O
stores	O
more	O
information	O
about	O
the	O
user	O
's	O
history	B-Protocol
and	O
bookmarks	O
,	O
in	O
particular	O
letting	O
the	O
user	O
tag	B-General_Concept
the	O
pages	O
.	O
</s>
<s>
The	O
Mac	O
version	O
of	O
Firefox	B-Language
3	I-Language
supports	O
Growl	B-Operating_System
notifications	I-Operating_System
,	O
the	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
spell	O
checker	O
,	O
and	O
Aqua-style	O
form	O
controls	O
.	O
</s>
<s>
To	O
give	O
the	O
browser	B-Application
a	O
more	O
native	O
look	O
and	O
feel	O
on	O
different	O
operating	B-General_Concept
systems	I-General_Concept
,	O
Firefox	B-Language
3	I-Language
uses	O
separate	O
themes	B-Application
for	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
Linux	B-Application
,	O
Windows	B-Application
XP	I-Application
,	O
and	O
Windows	B-Application
Vista	I-Application
.	O
</s>
<s>
When	O
running	O
on	O
GNOME	B-Application
,	O
Firefox	B-Language
3	I-Language
displays	O
icons	O
from	O
the	O
environment	O
;	O
thus	O
,	O
when	O
the	O
desktop	O
environment	O
icon	O
theme	O
changes	O
,	O
Firefox	B-Application
follows	O
suit	O
.	O
</s>
<s>
Additional	O
icons	O
were	O
also	O
made	O
to	O
be	O
used	O
when	O
no	O
appropriate	O
icon	O
exists	O
;	O
these	O
were	O
made	O
following	O
the	O
Tango	B-Language
Desktop	I-Language
Project	I-Language
guidelines	O
.	O
</s>
<s>
Additionally	O
,	O
the	O
GTK	B-Application
version	O
has	O
replaced	O
the	O
non-native	O
tab	O
bar	O
that	O
was	O
implemented	O
in	O
Firefox	B-Language
2.0	I-Language
and	O
instead	O
uses	O
the	O
native	O
GTK+	B-Application
tab	O
style	O
.	O
</s>
<s>
The	O
default	O
icons	O
and	O
icon	O
layout	O
for	O
Firefox	B-Language
3	I-Language
also	O
changed	O
dramatically	O
,	O
taking	O
on	O
a	O
keyhole	O
shape	O
for	O
the	O
forward	O
and	O
back	O
buttons	O
by	O
default	O
on	O
two	O
of	O
the	O
three	O
platforms	O
.	O
</s>
<s>
However	O
,	O
the	O
keyhole	O
shape	O
does	O
not	O
take	O
effect	O
in	O
Linux	B-Application
or	O
in	O
the	O
small-icon	O
mode	O
.	O
</s>
<s>
The	O
Iconfactory	O
created	O
the	O
icons	O
for	O
the	O
Microsoft	B-Application
Windows	I-Application
platform	O
.	O
</s>
<s>
In	O
addition	O
,	O
separate	O
icons	O
sets	O
are	O
displayed	O
for	O
Windows	B-Application
XP	I-Application
and	O
Vista	B-Application
.	O
</s>
<s>
Windows	B-Application
2000	I-Application
and	O
Windows	B-Application
XP	I-Application
"	O
Strata	O
"	O
visual	O
style.350pxMac	O
OS	B-Operating_System
X	I-Operating_System
"	O
Firelight	O
"	O
visual	O
style.350px	O
"	O
Tango	B-Language
"	O
visual	O
style	O
for	O
Linux	B-Application
and	O
Unix-like	O
operating	B-General_Concept
systems	I-General_Concept
in	O
Ubuntu	B-Operating_System
.	O
</s>
<s>
(	O
Icons	O
changed	O
based	O
on	O
applied	O
GTK+	B-Application
2	I-Application
theme	O
.	O
)	O
</s>
<s>
(	O
previously	O
called	O
"	O
Airbag	O
"	O
)	O
is	O
an	O
open-source	O
crash	B-Operating_System
reporter	I-Operating_System
utility	O
which	O
replaced	O
the	O
proprietary	B-Application
Talkback	O
.	O
</s>
<s>
It	O
has	O
been	O
developed	O
by	O
Google	B-Application
and	O
Mozilla	B-Operating_System
,	O
and	O
used	O
in	O
Firefox	B-Application
and	O
Thunderbird	B-Application
.	O
</s>
<s>
This	O
product	O
is	O
significant	O
because	O
it	O
is	O
the	O
first	O
open-source	O
multi-platform	B-Operating_System
crash	B-Operating_System
reporting	I-Operating_System
system	O
.	O
</s>
<s>
During	O
development	O
,	O
Breakpad	O
was	O
first	O
included	O
May	O
27	O
,	O
2007	O
in	O
Firefox	B-Language
3	I-Language
trunk	O
builds	O
on	O
Windows	B-Device
NT	I-Device
,	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
and	O
,	O
weeks	O
later	O
,	O
on	O
Linux	B-Application
.	O
</s>
<s>
Breakpad	O
replaced	O
Talkback	O
(	O
also	O
known	O
as	O
the	O
Quality	O
Feedback	O
Agent	O
)	O
as	O
the	O
crash	B-Operating_System
reporter	I-Operating_System
used	O
by	O
the	O
Mozilla	B-Operating_System
software	O
to	O
report	O
crashes	O
of	O
its	O
products	O
to	O
a	O
centralized	O
server	B-Application
for	O
aggregation	O
or	O
case-by-case	O
analysis	O
.	O
</s>
<s>
Talkback	O
was	O
proprietary	B-Application
software	I-Application
licensed	O
to	O
the	O
Mozilla	B-Operating_System
Corporation	O
by	O
SupportSoft	O
.	O
</s>
<s>
Net	O
Applications	O
noted	O
that	O
the	O
use	O
of	O
Firefox	B-Language
3	I-Language
beta	O
rapidly	O
increased	O
to	O
a	O
usage	O
share	O
of	O
0.62	O
%	O
in	O
May	O
2008	O
.	O
</s>
<s>
They	O
interpreted	O
this	O
increase	O
to	O
mean	O
that	O
Firefox	B-Language
3	I-Language
betas	O
were	O
stable	O
and	O
that	O
users	O
were	O
using	O
it	O
as	O
their	O
primary	O
browser	B-Application
.	O
</s>
<s>
Within	O
24	O
hours	O
after	O
the	O
release	O
of	O
Firefox	B-Language
3.0	I-Language
,	O
usage	O
rose	O
from	O
under	O
1%	O
to	O
over	O
3%	O
according	O
to	O
Net	O
Applications	O
.	O
</s>
<s>
It	O
reached	O
a	O
peak	O
of	O
21.17	O
%	O
in	O
April	O
2009	O
before	O
declining	O
as	O
users	O
switched	O
to	O
Firefox	B-Language
3.5	I-Language
and	O
later	O
Firefox	B-Protocol
3.6	I-Protocol
.	O
</s>
<s>
The	O
official	O
date	O
for	O
the	O
launch	O
of	O
Firefox	B-Language
3	I-Language
was	O
June	O
17	O
,	O
2008	O
,	O
named	O
"	O
Download	O
Day	O
2008	O
"	O
.	O
</s>
<s>
Firefox	B-Application
was	O
aiming	O
to	O
set	O
the	O
record	O
for	O
most	O
software	O
downloads	O
in	O
24	O
hours	O
.	O
</s>
<s>
With	O
the	O
announced	O
date	O
,	O
the	O
download	O
day	O
was	O
June	O
18	O
for	O
time	B-Device
zones	I-Device
greater	O
than	O
GMT	O
+6	O
,	O
which	O
includes	O
half	O
of	O
Asia	O
and	O
all	O
of	O
Oceania	O
.	O
</s>
<s>
The	O
large	O
number	O
of	O
users	O
attempting	O
to	O
access	O
the	O
Mozilla	B-Operating_System
website	O
on	O
June	O
17	O
caused	O
it	O
to	O
become	O
unavailable	O
for	O
at	O
least	O
a	O
few	O
hours	O
,	O
and	O
attempts	O
at	O
upgrading	O
to	O
the	O
new	O
version	O
resulted	O
in	O
server	B-Application
timeouts	O
.	O
</s>
<s>
The	O
site	O
was	O
not	O
updated	O
for	O
the	O
download	O
of	O
Firefox	B-Language
3	I-Language
until	O
12:00	O
PDT	O
(	O
19:00	O
UTC	O
)	O
,	O
two	O
hours	O
later	O
than	O
originally	O
scheduled	O
.	O
</s>
<s>
On	O
July	O
2	O
Mozilla	B-Operating_System
announced	O
they	O
had	O
won	O
the	O
record	O
,	O
with	O
8,002,530	O
unique	O
downloads	O
and	O
parties	O
in	O
over	O
25	O
countries	O
.	O
</s>
<s>
As	O
of	O
July	O
7	O
,	O
2008	O
,	O
more	O
than	O
31	O
million	O
people	O
had	O
downloaded	O
Firefox	B-Language
3	I-Language
.	O
</s>
<s>
Gareth	O
Deaves	O
,	O
Records	O
Manager	O
for	O
Guinness	O
World	O
Records	O
,	O
complimented	O
Mozilla	B-Operating_System
,	O
saying	O
,	O
"	O
Mobilizing	O
over	O
8	O
million	O
internet	O
users	O
within	O
24	O
hours	O
is	O
an	O
extremely	O
impressive	O
accomplishment	O
and	O
we	O
would	O
like	O
to	O
congratulate	O
the	O
Mozilla	B-Operating_System
community	O
for	O
their	O
hard	O
work	O
and	O
dedication.	O
"	O
</s>
<s>
Firefox	B-Language
3	I-Language
runs	O
on	O
Windows	B-Application
2000	I-Application
and	O
later	O
,	O
and	O
on	O
Windows	B-Device
98	I-Device
and	O
ME	O
with	O
the	O
third-party	O
Kernel	O
Extender	O
installed	O
.	O
</s>
<s>
While	O
the	O
new	O
functionality	O
of	O
the	O
location	O
bar	O
,	O
dubbed	O
the	O
"	O
Awesomebar	O
"	O
,	O
was	O
overall	O
well-received	O
,	O
there	O
were	O
those	O
who	O
did	O
not	O
like	O
it	O
due	O
to	O
user	B-Application
interface	I-Application
and	O
performance	O
changes	O
,	O
so	O
much	O
that	O
extensions	O
were	O
made	O
to	O
revert	O
it	O
.	O
</s>
<s>
Firefox	B-Language
3	I-Language
received	O
CNET	O
Editors	O
 '	O
Choice	O
in	O
June	O
2008	O
.	O
</s>
