Blank Popup Window Rated 3 out of 5 stars

While split view mode works as advertised
upon clicking to open as popup window a blank (empty) window appears.

Update. A new discrepancy emerged. It's impossible to view Archived messages. When you click them there's nothing but empty blank space, no messages loaded. Also it's hard to get back to actual conversations with some of them (uppermost) missing until you click to compose a new message to the person which conversation is hidden with.

Firefox 48.0.2, Mac OS X Lion

Rated 5 out of 5 stars

Good

This review is for a previous version of the add-on (52.1). 

Rated 3 out of 5 stars

Bien

This review is for a previous version of the add-on (52.1). 

Rated 5 out of 5 stars

muy bueno!!

This review is for a previous version of the add-on (50.1). 

working again Rated 5 out of 5 stars

Working again
i love this plugin

This review is for a previous version of the add-on (49.2). 

COOL EXTENSION Rated 5 out of 5 stars

no more to say "COOL EXTENSION"

This review is for a previous version of the add-on (49.1). 

Justo la aplicación que me faltaba Rated 5 out of 5 stars

Muy útil como evito entrar en FB y para poder escribir un mensaje con un teclado normal.

This review is for a previous version of the add-on (49.0). 

Super ! Rated 5 out of 5 stars

Super module, exactement ce que je rechercher. Petite idée pour une futur évolution : Pouvoir réduire la fenêtre sans forcement la fermer pourrai être sympa :)

This review is for a previous version of the add-on (47.1). 

This is exactly what I'm looking for. Rated 5 out of 5 stars

5 stars from me. It puts it in a resizable sidebar that's INSIDE the browser's window, not a separate window. And it even gives you the option to MAKE IT a separate window, if you like it that way. How cool is that. Makes it easier to play SHSO and chat with my FB friends while doing so. Thanks! :)

This review is for a previous version of the add-on (47.1). 

messenger Rated 5 out of 5 stars

esta bueno solo que no puedo ver donde envio los sms :(

This review is for a previous version of the add-on (47.1). 

Works great Rated 5 out of 5 stars

Pervect!

This review is for a previous version of the add-on (45.1). 

Brilliant!! Rated 5 out of 5 stars

Brilliant

This review is for a previous version of the add-on (45.1). 

facebook Rated 5 out of 5 stars

ok

This review is for a previous version of the add-on (45.1). 

Works great Rated 5 out of 5 stars

Just a click to open and close, but I would like to be able to undock it from FF window, to have it as a separate window.

This review is for a previous version of the add-on (45.0). 

Rated 5 out of 5 stars

Now Its very easy to Chat with friends and Audio Video Calls through Facebook messenger its is Very Usefull application

This review is for a previous version of the add-on (41.1). 

Perfect! Rated 5 out of 5 stars

Works beautifully. Only thing missing is the archive chat function, but I think that's probably because of the way Facebook works. :) Thanks a ton, dev!

This review is for a previous version of the add-on (38.4). 

How to complement this add-on using Stylish Rated 5 out of 5 stars

Since I already reviewed this add-on as very-very useful, I would like to share that there are some scripts along with "Stylish" add-on that can complement this add-on.

In order to hide the contacts list completely and show on mouse-over:
https://userstyles.org/styles/112567/facebook-messanger-nice-tidy-and-more-responsive

Just to show the images of the contacts (and also show on mouse-over):
https://userstyles.org/styles/116878/compact-facebook-messenger
(and yes, this is by me)

This review is for a previous version of the add-on (38.4).  This user has a previous review of this add-on.

Rated 5 out of 5 stars

very usefull

This review is for a previous version of the add-on (38.4). 

Excelent add on, useful and good looking Rated 5 out of 5 stars

just what iwas looking for. now i can chat without the need of being on facebook all the time!
just one thing is missing, the option of hide the list of friends :(

This review is for a previous version of the add-on (38.2-signed). 

Rated 5 out of 5 stars

Muito bom! :D . Muito melhor o Firefox com esse complemento :D.
Obrigado.
Português - Brasil.

This review is for a previous version of the add-on (35.2.1-signed).