[CentOS] Firefox - remote xul manager gone after Centos update

Dear All,

I am faced with this problem:

Firefox version is 17.0.6 before and after the update

I ran an update today;

bash-4.1# yum history Loaded plugins: fastestmirror, refresh-packagekit, security ID | Login user | Date and time | Action(s) | Altered ------------------------------------------------------------------------------- 296 | james <james> | 2013-06-20 21:08 | E, I, U | 42

I'm not sure which packet could have caused this, but before the update, I could go to

Extra-webdeveloper-remote xul manager

in Firefox and add domains

Now remote xul manager is gone in webdeveloper.

Can anyone offer any advise on this problem?

greetings, J.