Mozilla Firefox EsrMozilla Thunderbird EsrMozilla FirefoxMozilla ThunderbirdMozilla SeamonkeyCanonical Ubuntu Linux 10.04Canonical Ubuntu Linux 11.04Canonical Ubuntu Linux 11.10Canonical Ubuntu Linux 12.04Redhat Enterprise Linux Desktop 5.0Redhat Enterprise Linux Desktop 6.0Redhat Enterprise Linux Eus 6.3Redhat Enterprise Linux Server 5.0Redhat Enterprise Linux Server 6.0Redhat Enterprise Linux Workstation 5.0Redhat Enterprise Linux Workstation 6.0