bug in flah control panel for allow acces to my cam and micro after a few mintues de cam is frozen:( and I can't reload again

Binary package hint: firefox

My problem is: I have a video chat site that runs using the option panel flash that says give access to the camera and microphone. In the previous version of Mozilla Fire fox to click in global configuration took me to the control panel directly to the page flash adobe, there simply selected my site to have access to my camera and it worked perfectly. But in this new version of Mozilla Fire Fox and Ubuntu 4.11 when clicking on configuration now takes me to Adobe page but it opens a box of preferences within the Ubuntu or Mozilla, there appears now that provide access to the site and camera. and currently works but after a few minutes the camera freezes and I can not refresh my camera on the page: (Can someone help me?

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: firefox 4.0.1+build1+nobinonly-0ubuntu0.11.04.1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Sun May 15 04:58:49 2011
FirefoxPackages:
 firefox 4.0.1+build1+nobinonly-0ubuntu0.11.04.1
 flashplugin-installer N/A
 adobe-flashplugin 10.3.181.14-0natty1
 icedtea-plugin 1.1~20110420-0ubuntu1
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcEnviron:
 LANGUAGE=es:en
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)