Firefox address in awsome bar does not remain in cache after copying.

Binary package hint: firefox

Here is how I produced this:
I hv google chrome and firefox both installed.

If I hv to open a website I opened in firefox,again in chrome, I copy the address from the firefox navigation bar and CLOSE it. Then I open chrome and try to paste the address in it's navigation bar, here u are wit problem, there is no option to paste anything(It's greyed out).
It happens only when the app(firefox) is closed before we paste tht content to the other browser.

This can be seen the otherway also. ie if we copy from chrome and try to paste in firefox (of course after closing the chrome).

This was present in Karmic and is now present in lucid also.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: firefox 3.6.3+nobinonly-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Sun Apr 11 01:58:11 2010
ExecutablePath: /usr/lib/firefox-3.6.3/firefox
FirefoxPackages:
 firefox 3.6.3+nobinonly-0ubuntu2
 firefox-gnome-support 3.6.3+nobinonly-0ubuntu2
 firefox-branding 3.6.3+nobinonly-0ubuntu2
 abroswer N/A
 abrowser-branding N/A
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100405)
InterpreterPath: /bin/dash
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: firefox