Good, but a bit buggy and some usability issues. Rated 2 out of 5 stars

The addon adds an empty entry to the right click menu, so you just have a blank button there forever that does nothing.
The additional button the addon adds is unconfigurable for some reason, which means you can't remove or hide it without removing the addon. A bit of a shame since the button doesn't provide any exclusive or useful functionality anyway.

Perfect and It's Google, not the Add-on Rated 5 out of 5 stars

Does exactly what it says and with no problems.

Except at Google.com. Those idiots can't help but be jerks 24 hours a day so now they're click-jacking your command to "Go back" and ignoring it.

FF 29? Rated 5 out of 5 stars

Love this add-on but with FF 29 it no longer is overlaying the back button.. any plans to update?

Rated 5 out of 5 stars

a simple and great addon. I advise you to install Firegestures addon and to assign the LEFT gesture with : BrowserHandleBackspace();

Rated 5 out of 5 stars

Спасибо!

adm3rd Rated 5 out of 5 stars

This is a must for me! Works great!

Thank You!

please fix this bug Rated 5 out of 5 stars

i get u 5star for your great addon but please:

for me in ff10
this good addon disable back button
ok?
close work but when i some page open and want to back, the back button not worked

doesn't work well on Mac Rated 2 out of 5 stars

- doesn't support swipe navigation (three-finger or two-finger) gestures on Mac trackpad.
- looks ugly, square icon put into round hole on back button.

Mac users, try "back to close" addon instead, works well...

no key combos on Mac FF 9 Rated 2 out of 5 stars

FF 9.0 on Mac OS X. Toolbar button and menu both work, but keyboard combo does not. No other tab-related extensions installed. Oh, well.

Rated 5 out of 5 stars

Thanks to have updated your Back IS Close extension ;)
I have tried to install it on FF5 but I encountered first the documented problem with IE Tab Plus. So I have uninstalled IE Tab Plus then reinstalled it.
But I have always a problem : it works with the button but not with the mouse moves.
I use the FireGesture 1.6.5 extension and the left move tries to do the back but not to do the close.
Maybe FireGesture option must be updated like for secure Login extension for which I have set the script : secureLogin.login();
Thanks if you can explain how to do it with FireGesture.
Best regards. menet

This user has a previous review of this add-on.

Rated 4 out of 5 stars

Please please please disable closing App tabs!

Rated 5 out of 5 stars

Lauren,
sorry for the trouble. I'm the BiC author, and it's working for me in FF 3.6.15. Could you email me at back-is-close@diffenbach.org please?

This review is for a previous version of the add-on (2.0).  This user has a previous review of this add-on.

Rated 1 out of 5 stars

I *love* this Add-on and got addicted to it back in FF2. It's much better than Back To Close, but after installing it on a fresh FF3 a week ago and updating yesterday to 3.6.14 it is, once again, broken. The "close" button works, but going back in the browser is completely broken.

Sorry guys, I'm going back to Back To Close (even though I don't like it) because it works from update to update.

This review is for a previous version of the add-on (2.0). 

Rated 5 out of 5 stars

update pleasee :(

This review is for a previous version of the add-on (1.4). 

New FF3 Compatible Clone of BackIsClose Rated 5 out of 5 stars

I've created an extension that performs the exact functionality of BackISClose. I'm very grateful to TP Diffenbach for this extension and just wanted to make a FF3 compatible extension for us all to use.

It is currently in the developer sandbox. Please try it and leave some feedback so that I can get it on the public site for all to use.

Back to Close: https://addons.mozilla.org/en-US/firefox/addon/9793

This review is for a previous version of the add-on (1.4). 

Rated 5 out of 5 stars

Mine works perfectly

for anyone who has the problem of the back-button not working when installed the latest beta for ff3 check: http://forums.mozillazine.org/viewtopic.php?f=48&t=505032&p=4318465#p4318465

This review is for a previous version of the add-on (1.4). 

Rated 5 out of 5 stars

pls update !!

This review is for a previous version of the add-on (1.4). 

Beta for FF3 Rated 3 out of 5 stars

The beta mentioned in the last 2 posts (http://diffenbach.org/back-is-close/latest/back_is_close-1.5beta-fx.xpi) doesn't work for me, it breaks my back button. I really miss this add-on :-(

This review is for a previous version of the add-on (1.4). 

Rated 5 out of 5 stars

The Beta Version (http://diffenbach.org/back-is-close/latest/back_is_close-1.5beta-fx.xpi) works perfectly with FF3.
Thank you very much......

This review is for a previous version of the add-on (1.4). 

Rated 5 out of 5 stars

WOW!!! Finally available for FF3. GREAT!!!!

This review is for a previous version of the add-on (1.4).