<s>
Instantbird	B-Protocol
is	O
a	O
discontinued	O
cross-platform	B-Operating_System
instant	B-Application
messaging	I-Application
client	O
based	O
on	O
Mozilla	B-Operating_System
's	O
XULRunner	B-Language
and	O
the	O
open-source	B-Application
library	O
libpurple	B-Protocol
used	O
in	O
Pidgin	B-Protocol
.	O
</s>
<s>
Instantbird	B-Protocol
is	O
free	B-Application
software	I-Application
available	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
<s>
On	O
October	O
18	O
,	O
2017	O
,	O
Florian	O
Quèze	O
announced	O
that	O
"	O
...	O
we	O
are	O
stopping	O
development	O
of	O
Instantbird	B-Protocol
as	O
a	O
standalone	O
product.	O
"	O
</s>
<s>
XMPP	B-Protocol
(	O
Google	B-Application
Talk	I-Application
,	O
...	O
)	O
</s>
<s>
Text	O
copied	O
from	O
an	O
Instantbird	B-Protocol
window	O
is	O
reformatted	O
transparently	O
to	O
include	O
timestamps	O
in	O
front	O
of	O
each	O
message	O
,	O
in	O
a	O
feature	O
called	O
"	O
Magic	O
Copy	O
"	O
.	O
</s>
<s>
Instantbird	B-Protocol
includes	O
an	O
Add-ons	O
system	O
which	O
allows	O
additional	O
protocol	O
support	O
such	O
as	O
LiveJournal	B-Application
's	O
LJ	O
Talk	O
;	O
there	O
are	O
over	O
250	O
additional	O
add-ons	O
available	O
.	O
</s>
<s>
In	O
October	O
2015	O
the	O
Tor	B-Application
anonymity	O
project	O
presented	O
Tor	B-Application
Messenger	O
as	O
its	O
open-source	B-Application
instant	B-Application
messenger	I-Application
client	O
.	O
</s>
<s>
It	O
is	O
based	O
on	O
Instandbird	O
but	O
removes	O
the	O
dependency	O
on	O
libpurple	B-Protocol
,	O
re-implementing	O
all	O
supported	O
chat	O
protocols	O
in	O
the	O
memory-safe	O
language	O
JavaScript	B-Language
.	O
</s>
<s>
Tor	B-Application
Messenger	O
encrypts	O
one-to-one	O
chats	O
by	O
default	O
using	O
OTR	B-Protocol
and	O
provides	O
anonymity	O
by	O
routing	O
its	O
traffic	O
through	O
the	O
Tor	B-Application
network	I-Application
.	O
</s>
<s>
Instantbird	B-Protocol
received	O
some	O
positive	O
notice	O
,	O
with	O
stated	O
expectations	O
of	O
future	O
improvements	O
.	O
</s>
<s>
Tech	O
blogger	O
Chris	O
Pirillo	O
wrote	O
that	O
the	O
client	O
"	O
works	O
quite	O
well	O
on	O
all	O
three	O
main	O
operating	O
systems	O
"	O
,	O
that	O
the	O
interface	O
"	O
is	O
unobtrusive	O
…	O
and	O
very	O
clean	O
"	O
,	O
and	O
that	O
chat	O
can	O
take	O
place	O
on	O
multiple	O
protocols	O
simultaneously	O
,	O
including	O
IRC	B-Protocol
.	O
</s>
<s>
BetaNews	O
writer	O
Joe	O
Cassels	O
noted	O
that	O
Instantbird	B-Protocol
"	O
aims	O
to	O
bring	O
together	O
many	O
of	O
these	O
disparate	O
networks	O
and	O
services	O
under	O
one	O
roof	O
,	O
and	O
while	O
not	O
as	O
polished	O
as	O
more	O
established	O
multi-network	O
clients	O
like	O
Trillian	B-Protocol
and	O
Pidgin	B-Protocol
,	O
its	O
close	O
links	O
to	O
Mozilla	B-Operating_System
makes	O
us	O
confident	O
the	O
program	O
will	O
evolve	O
into	O
a	O
powerful	O
alternative	O
to	O
these	O
programs	O
in	O
time.	O
"	O
</s>
<s>
LifeHacker	O
writer	O
Alan	O
Henry	O
called	O
the	O
application	O
's	O
visual	O
appearance	O
"	O
sharp	O
"	O
,	O
referred	O
to	O
the	O
user	O
interface	O
as	O
"	O
inspired	O
by	O
"	O
but	O
"	O
a	O
bit	O
more	O
attractive	O
"	O
than	O
Pidgin	B-Protocol
,	O
called	O
the	O
version	O
1.0	O
of	O
the	O
software	O
"	O
a	O
big	O
improvement	O
"	O
,	O
and	O
stated	O
"	O
what	O
it	O
lacks	O
in	O
native	O
features	O
it	O
makes	O
up	O
for	O
in	O
add-ons	O
and	O
themes	O
contributed	O
by	O
the	O
user	O
community.	O
"	O
</s>
