<s>
Waterfox	B-Language
is	O
an	O
open-source	B-License
web	B-Application
browser	I-Application
that	O
is	O
forked	B-Application
from	O
Firefox	B-Application
and	O
developed	O
by	O
System1	O
.	O
</s>
<s>
There	O
are	O
official	O
Waterfox	B-Language
releases	O
for	O
Windows	B-Application
,	O
macOS	B-Application
,	O
and	O
Linux	B-Application
.	O
</s>
<s>
Waterfox	B-Language
shares	O
core	O
features	O
and	O
technologies	O
like	O
the	O
Gecko	B-Language
browser	B-Application
engine	O
and	O
support	O
for	O
Firefox	B-Operating_System
Add-ons	I-Operating_System
with	O
Firefox	B-Application
.	O
</s>
<s>
Waterfox	B-Language
Classic	O
is	O
a	O
version	O
of	O
the	O
browser	B-Application
based	O
on	O
an	O
older	O
version	O
of	O
the	O
Gecko	B-Language
engine	I-Language
that	O
supports	O
legacy	O
XUL	B-Application
and	O
XPCOM	B-Application
add-on	B-Operating_System
capabilities	O
that	O
Firefox	B-Application
removed	O
in	O
version	O
57	O
.	O
</s>
<s>
Waterfox	B-Language
Classic	O
has	O
multiple	O
unpatched	O
security	O
advisories	O
.	O
</s>
<s>
Waterfox	B-Language
was	O
first	O
released	O
by	O
Alex	O
Kontos	O
on	O
March	O
27	O
,	O
2011	O
for	O
64-bit	O
Windows	B-Application
.	O
</s>
<s>
The	O
Mac	B-Application
build	O
was	O
introduced	O
on	O
May	O
14	O
,	O
2015	O
with	O
the	O
release	O
of	O
version	O
38.0	O
,	O
the	O
Linux	B-Application
build	O
was	O
introduced	O
on	O
December	O
20	O
,	O
2016	O
with	O
the	O
release	O
of	O
version	O
50.0	O
,	O
and	O
an	O
Android	O
build	O
was	O
first	O
introduced	O
on	O
October	O
10	O
,	O
2017	O
in	O
version	O
55.2.2	O
.	O
</s>
<s>
From	O
July	O
22	O
,	O
2015	O
to	O
November	O
12	O
,	O
2015	O
,	O
Waterfox	B-Language
had	O
its	O
own	O
search-engine	O
called	O
"	O
Storm	O
"	O
that	O
would	O
raise	O
funds	O
for	O
charity	O
and	O
Waterfox	B-Language
.	O
</s>
<s>
Storm	O
was	O
developed	O
with	O
over	O
£2	O
million	O
of	O
investor	O
funding	O
and	O
powered	O
by	O
Yahoo	B-Application
!	I-Application
</s>
<s>
In	O
December	O
2019	O
,	O
System1	O
,	O
an	O
advertising	O
company	O
which	O
portrays	O
itself	O
as	O
privacy-focused	O
,	O
acquired	O
Waterfox	B-Language
.	O
</s>
