right mouse click disabled

Binary package hint: firefox

Hi,

when loading Firefox and checking whether the right-mouse click works, everything is fine but after a while, for some unknown reason, this appears to have become disabled.
When that happens, I can't re-enable it.

The only way to use the right mouse button again within Firefox is by closing Firefox and restarting it.
After that it works just fine again (for as long as it takes).

This issue does not only occur on my (orriginally Vista) Laptop but also on my old (orriginally Windows XP) computer.
On both machines I have installed the same Linux Kubuntu 10.04 LTS operating system.

1. Description: Ubuntu 10.04.1 LTS, Release: 10.04
3. show me the appropriate popup menu
4. nothing

Cheers,
Jo
(The Netherlands)

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: firefox 3.6.8+build1+nobinonly-0ubuntu0.10.04.1
ProcVersionSignature: Ubuntu 2.6.32-24.39-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic i686
Architecture: i386
Date: Sat Aug 14 13:46:01 2010
FirefoxPackages:
 firefox 3.6.8+build1+nobinonly-0ubuntu0.10.04.1
 firefox-gnome-support N/A
 firefox-branding 3.6.8+build1+nobinonly-0ubuntu0.10.04.1
 abroswer N/A
 abrowser-branding N/A
InstallationMedia: Kubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427)
ProcEnviron:
 LANG=nl_NL.UTF-8
 SHELL=/bin/bash
SourcePackage: firefox