<s>
MDN	B-Application
Web	I-Application
Docs	I-Application
,	O
previously	O
Mozilla	B-Application
Developer	I-Application
Network	I-Application
and	O
formerly	O
Mozilla	B-Application
Developer	I-Application
Center	I-Application
,	O
is	O
a	O
documentation	O
repository	O
and	O
learning	O
resource	O
for	O
web	O
developers	O
.	O
</s>
<s>
It	O
was	O
started	O
by	O
Mozilla	B-Operating_System
in	O
2005	O
as	O
a	O
unified	O
place	O
for	O
documentation	O
about	O
open	O
web	O
standards	O
,	O
Mozilla	B-Operating_System
's	O
own	O
projects	O
,	O
and	O
developer	O
guides	O
.	O
</s>
<s>
MDN	B-Application
Web	I-Application
Docs	I-Application
content	O
is	O
maintained	O
by	O
Mozilla	B-Operating_System
,	O
Google	B-Application
employees	O
,	O
and	O
volunteers	O
(	O
community	O
of	O
developers	O
and	O
technical	O
writers	O
)	O
.	O
</s>
<s>
It	O
also	O
contains	O
content	O
contributed	O
by	O
Microsoft	O
,	O
Google	B-Application
,	O
and	O
Samsung	B-Application
who	O
,	O
in	O
2017	O
,	O
announced	O
they	O
would	O
shut	O
down	O
their	O
own	O
documentation	O
projects	O
and	O
move	O
all	O
their	O
documentation	O
to	O
MDN	B-Application
Web	I-Application
Docs	I-Application
.	O
</s>
<s>
Topics	O
include	O
HTML5	B-Application
,	O
JavaScript	B-Language
,	O
CSS	B-Language
,	O
Web	B-General_Concept
APIs	I-General_Concept
,	O
Django	B-Language
,	O
Node.js	B-Language
,	O
WebExtensions	B-Operating_System
,	O
MathML	B-Language
,	O
and	O
others	O
.	O
</s>
<s>
In	O
2005	O
,	O
Mozilla	B-Operating_System
Corporation	O
started	O
the	O
project	O
under	O
the	O
name	O
Mozilla	B-Application
Developer	I-Application
Center	I-Application
.	O
</s>
<s>
Mozilla	B-Operating_System
Corporation	O
still	O
funds	O
servers	O
and	O
employs	O
staff	O
working	O
on	O
the	O
projects	O
.	O
</s>
<s>
The	O
initial	O
content	O
for	O
the	O
website	O
was	O
provided	O
by	O
DevEdge	O
,	O
for	O
which	O
the	O
Mozilla	B-Operating_System
Foundation	O
was	O
granted	O
a	O
license	O
by	O
AOL	O
.	O
</s>
<s>
The	O
site	O
now	O
contains	O
a	O
mix	O
of	O
content	O
migrated	O
from	O
DevEdge	O
and	O
mozilla.org,	O
as	O
well	O
as	O
original	O
and	O
more	O
up-to-date	O
content	O
.	O
</s>
<s>
On	O
Oct	O
3	O
,	O
2016	O
,	O
Brave	B-Application
browser	I-Application
added	O
Mozilla	B-Application
Developer	I-Application
Network	I-Application
as	O
one	O
of	O
its	O
default	O
search	O
engines	O
options	O
.	O
</s>
<s>
In	O
2017	O
,	O
MDN	B-Application
Web	I-Application
Docs	I-Application
became	O
the	O
unified	O
documentation	O
of	O
web	O
technology	O
for	O
Google	B-Application
,	O
Samsung	B-Application
,	O
Microsoft	O
,	O
and	O
Mozilla	B-Operating_System
.	O
</s>
<s>
In	O
2019	O
,	O
Mozilla	B-Operating_System
started	O
Beta	O
testing	O
a	O
new	O
reader	O
site	O
for	O
MDN	B-Application
Web	I-Application
Docs	I-Application
written	O
in	O
React	B-Application
(	O
instead	O
of	O
jQuery	B-Language
;	O
some	O
jQuery	B-Language
functionality	O
was	O
replaced	O
with	O
Cheerio	O
library	O
)	O
.	O
</s>
<s>
Since	O
December	O
14	O
,	O
2020	O
,	O
all	O
editable	O
content	O
is	O
stored	O
in	O
a	O
Git	O
repository	O
hosted	O
on	O
GitHub	B-Application
,	O
where	O
contributors	O
open	O
pull	O
requests	O
and	O
discuss	O
changes	O
.	O
</s>
<s>
On	O
January	O
25	O
2021	O
,	O
the	O
Open	B-Application
Web	I-Application
Docs	I-Application
(	O
OWD	O
)	O
organization	O
was	O
launched	O
as	O
a	O
non-profit	O
fiscal	O
entity	O
to	O
collect	O
funds	O
for	O
MDN	O
development	O
.	O
</s>
<s>
As	O
of	O
March	O
2023	O
,	O
the	O
top	O
financial	O
contributors	O
of	O
OWD	O
are	O
Google	B-Application
,	O
Microsoft	O
,	O
Igalia	O
,	O
Canva	O
,	O
and	O
JetBrains	O
.	O
</s>
