<s>
Mozilla	B-Operating_System
Firefox	I-Operating_System
,	I-Operating_System
Portable	I-Operating_System
Edition	I-Operating_System
(	O
formerly	O
known	O
as	O
Portable	B-Operating_System
Firefox	I-Operating_System
and	O
commonly	O
known	O
as	O
Firefox	B-Operating_System
Portable	I-Operating_System
)	O
is	O
a	O
repackaged	O
version	O
of	O
Mozilla	B-Application
Firefox	I-Application
created	O
by	O
John	B-Application
T	I-Application
.	I-Application
Haller	I-Application
.	O
</s>
<s>
The	O
application	O
allows	O
Firefox	B-Application
to	O
be	O
run	O
from	O
a	O
USB	O
flash	O
drive	O
,	O
CD-ROM	B-Device
,	O
or	O
other	O
portable	O
device	O
on	O
any	O
Windows	B-Application
computer	O
or	O
Linux/Unix	O
computer	O
running	O
Wine	B-Application
.	O
</s>
<s>
The	O
program	O
does	O
not	O
require	O
Firefox	B-Application
to	O
be	O
installed	O
on	O
the	O
computer	O
,	O
nor	O
does	O
it	O
leave	O
personal	O
information	O
on	O
the	O
computer	O
or	O
interfere	O
with	O
any	O
installed	O
versions	O
of	O
Firefox	B-Application
,	O
however	O
,	O
installation	O
on	O
the	O
computer	O
's	O
data	B-General_Concept
storage	I-General_Concept
device	I-General_Concept
is	O
possible	O
.	O
</s>
<s>
The	O
program	O
is	O
not	O
totally	O
portable	O
,	O
it	O
ca	O
n't	O
run	O
multiple	O
instances	O
of	O
Firefox	B-Application
out	B-General_Concept
of	I-General_Concept
the	I-General_Concept
box	I-General_Concept
.	O
</s>
<s>
It	O
is	O
compatible	O
with	O
Windows	B-Device
7	I-Device
,	O
Windows	B-Application
8	I-Application
,	O
Windows	B-Operating_System
10	I-Operating_System
,	O
Windows	B-Application
11	I-Application
as	O
well	O
as	O
Wine	B-Application
on	O
Unix-like	B-Operating_System
systems	I-Operating_System
.	O
</s>
<s>
Although	O
recent	O
versions	O
have	O
serious	O
compatibility	O
issues	O
with	O
WinPE	O
XP	O
and	O
BartPE	B-Application
XP	O
,	O
the	O
old	O
version	O
2.0.0.20	O
is	O
compatible	O
with	O
Windows	B-Device
98	I-Device
,	O
Me	B-Device
,	O
and	O
PE	O
XP	O
and	O
2000	O
.	O
</s>
<s>
Firefox	B-Operating_System
Portable	I-Operating_System
retains	O
all	O
of	O
Mozilla	B-Application
Firefox	I-Application
's	I-Application
abilities	O
such	O
as	O
extensions	B-Protocol
and	O
automatic	O
updating	O
.	O
</s>
<s>
The	O
web	B-Protocol
cache	I-Protocol
and	O
browser	B-Application
history	O
were	O
previously	O
disabled	O
under	O
the	O
release	O
of	O
2.0	O
.	O
</s>
<s>
Firefox	B-Operating_System
Portable	I-Operating_System
's	O
ability	O
to	O
delete	O
cookies	O
and	O
the	O
download	O
history	O
on	O
exit	O
is	O
not	O
enabled	O
by	O
default	O
,	O
as	O
per	O
a	O
licensing	O
agreement	O
with	O
Mozilla	O
.	O
</s>
<s>
Personal	O
settings	O
,	O
bookmarks	O
,	O
and	O
any	O
installed	O
extensions	B-Protocol
and	O
themes	B-Application
are	O
stored	O
on	O
the	O
flash	O
drive	O
along	O
with	O
Firefox	B-Operating_System
Portable	I-Operating_System
.	O
</s>
<s>
Plugins	B-Application
such	O
as	O
Flash	B-Operating_System
Player	I-Operating_System
and	O
Shockwave	B-Operating_System
Player	I-Operating_System
cannot	O
be	O
installed	O
to	O
Portable	B-Operating_System
Firefox	I-Operating_System
in	O
the	O
usual	O
sense	O
,	O
but	O
the	O
plug	O
in	O
files	O
can	O
be	O
copied	O
from	O
a	O
local	O
installation	O
to	O
the	O
appropriate	O
portable	O
folder	O
.	O
</s>
<s>
Launcher	O
–	O
Performs	O
a	O
number	O
of	O
functions	O
including	O
:	O
adjustment	O
of	O
paths	O
to	O
external	O
programs	O
(	O
mime	O
types	O
)	O
,	O
adjustment	O
of	O
paths	O
to	O
local	O
homepages	O
,	O
intelligent	O
recreation	O
of	O
the	O
component	O
registry	O
as	O
you	O
move	O
drives	O
,	O
backup/restore	O
of	O
certain	O
registry	O
keys	O
in	O
certain	O
instances	O
,	O
cleaning	O
of	O
folders	O
and	O
directories	O
in	O
certain	O
instances	O
,	O
adjustment	O
of	O
some	O
extension	O
setting	O
paths	O
making	O
non-portable	O
extensions	B-Protocol
portable	O
.	O
</s>
<s>
Default	O
Profile	O
–	O
A	O
default	O
profile	O
exists	O
within	O
the	O
Firefox	B-Application
directory	O
with	O
settings	O
to	O
improve	O
portability	O
.	O
</s>
<s>
No	O
Default	O
Browser	B-Application
Check	O
–	O
Firefox	B-Application
wo	O
n't	O
check	O
to	O
see	O
if	O
it	O
is	O
the	O
default	O
browser	B-Application
on	O
start	O
up	O
.	O
</s>
<s>
Download	O
Prompt	O
–	O
Firefox	B-Application
will	O
ask	O
where	O
to	O
save	O
downloads	O
.	O
</s>
<s>
No	O
Disk	O
Cache	O
–	O
The	O
browser	B-Application
disk	O
cache	O
has	O
been	O
disabled	O
to	O
decrease	O
disk	O
size	O
and	O
the	O
number	O
of	O
writes	O
to	O
the	O
disk	O
,	O
possibly	O
increasing	O
disk	O
life	O
.	O
</s>
<s>
Update	O
Prompt	O
–	O
As	O
updating	O
the	O
browser	B-Application
on	O
a	O
flash	O
drive	O
can	O
be	O
very	O
slow	O
,	O
Firefox	B-Operating_System
Portable	I-Operating_System
asks	O
you	O
if	O
you	O
'd	O
like	O
to	O
update	O
rather	O
than	O
doing	O
it	O
automatically	O
.	O
</s>
<s>
Add-ons	O
and	O
extensions	B-Protocol
appear	O
to	O
take	O
longer	O
to	O
install	O
.	O
</s>
<s>
Multiple	O
profiles	O
are	O
not	O
supported	O
(	O
a	O
somewhat	O
hidden	O
feature	O
in	O
the	O
official	O
Firefox	B-Application
)	O
;	O
however	O
,	O
PortableApps.com	B-Application
released	O
Multiple	O
Profile	O
Support	O
for	O
Firefox	B-Operating_System
Portable	I-Operating_System
.	O
</s>
