diff --git a/tests/p_firefox/0-install_firefox.sh b/tests/p_firefox/0-install_firefox.sh
new file mode 100755
index 0000000..02e6acc
--- /dev/null
+++ b/tests/p_firefox/0-install_firefox.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+# Author: Christoph Galuschka <christoph.galuschka@tiwag.at>
+
+# Install firefox
+t_InstallPackage firefox
diff --git a/tests/p_firefox/firefox_test.sh b/tests/p_firefox/firefox_test.sh
new file mode 100755
index 0000000..a11927d
--- /dev/null
+++ b/tests/p_firefox/firefox_test.sh
@@ -0,0 +1,14 @@
+#!/bin/sh
+# Author: Athmane Madjoudj <athmanem@gmail.com>
+# Author: Christoph Galuschka <christoph.galuschka@tiwag.at>
+
+t_Log "Running $0 - basic firefox test."
+
+# Only checking for correct output of '-v'
+# both C5/C6 use V3.6
+
+VERSION="3.6"
+
+firefox -v | grep "${VERSION}" >/dev/null 2>&1
+
+t_CheckExitStatus $?
diff --git a/tests/p_minicom/minicom_test.sh b/tests/p_minicom/minicom_test.sh
index 71183c3..f7c8da4 100755
--- a/tests/p_minicom/minicom_test.sh
+++ b/tests/p_minicom/minicom_test.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 # Author: Athmane Madjoudj <athmanem@gmail.com>
-# Author: Christph Galuschka <christoph.galuschka@tiwag.at>
+# Author: Christoph Galuschka <christoph.galuschka@tiwag.at>
 
 t_Log "Running $0 - very basic minicom test."
 
diff --git a/tests/p_rrdtool/rrdtool_test.sh b/tests/p_rrdtool/rrdtool_test.sh
index d2dbbfe..44da773 100755
--- a/tests/p_rrdtool/rrdtool_test.sh
+++ b/tests/p_rrdtool/rrdtool_test.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 # Author: Athmane Madjoudj <athmanem@gmail.com>
-# Author: Christph Galuschka <christoph.galuschka@tiwag.at>
+# Author: Christoph Galuschka <christoph.galuschka@tiwag.at>
 # RRD-sample from http://oss.oetiker.ch/rrdtool/doc/rrdcreate.en.html
 
 if (t_GetPkgRel basesystem | grep -q el6)
diff --git a/tests/p_thunderbird/0-install_thunderbird.sh b/tests/p_thunderbird/0-install_thunderbird.sh
new file mode 100755
index 0000000..b5d7d58
--- /dev/null
+++ b/tests/p_thunderbird/0-install_thunderbird.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+# Author: Christoph Galuschka <christoph.galuschka@tiwag.at>
+
+# Install thunderbird
+t_InstallPackage thunderbird
diff --git a/tests/p_thunderbird/thunderbird_test.sh b/tests/p_thunderbird/thunderbird_test.sh
new file mode 100755
index 0000000..d3a9ec0
--- /dev/null
+++ b/tests/p_thunderbird/thunderbird_test.sh
@@ -0,0 +1,19 @@
+#!/bin/sh
+# Author: Athmane Madjoudj <athmanem@gmail.com>
+# Author: Christoph Galuschka <christoph.galuschka@tiwag.at>
+
+t_Log "Running $0 - basic thunderbird test."
+
+# Only checking for correct output of '-v'
+# with respect to different versions on C5 and C6
+
+if (t_GetPkgRel basesystem | grep -q el6)
+then
+  VERSION="3.1"
+else
+  VERSION="2.0"
+fi
+
+thunderbird -v | grep "${VERSION}"  >/dev/null 2>&1
+
+t_CheckExitStatus $?