diff --git a/chrome/thunderlink/content/preferences.js b/chrome/thunderlink/content/preferences.js
index 0923719..44bc0d0 100644
--- a/chrome/thunderlink/content/preferences.js
+++ b/chrome/thunderlink/content/preferences.js
@@ -36,6 +36,7 @@ var ThunderLinkPrefNS = {
             var tTextbox = window.document.createElementNS(XUL_NS, "textbox"); 
             tTextbox.setAttribute("id", "prefCustomTlString" + cstrnum + "-title");
             tTextbox.setAttribute("preference", "prefs_customTlString" + cstrnum + "title");
+            tTextbox.setAttribute("size", 51);
             var tLabel = window.document.createElementNS(XUL_NS, "label"); 
             tLabel.setAttribute("label", "Custom String title:");
             tLabel.setAttribute("control", tTextbox.id);
@@ -101,7 +102,7 @@ var ThunderLinkPrefNS = {
 
         function createCstrTab(cstrnum) {
             var tab = window.document.createElementNS(XUL_NS, "tab");
-            tab.setAttribute("label", "Custom String " + cstrnum);
+            tab.setAttribute("label", "String " + cstrnum);
             return tab;
         }
 
@@ -116,7 +117,8 @@ var ThunderLinkPrefNS = {
         var tabs = window.document.createElementNS(XUL_NS, "tabs"); 
         var tabpanels = window.document.createElementNS(XUL_NS, "tabpanels"); 
 
-        for (let i = 1; i < 5; i++){
+        var nrOfCStrings = 8
+        for (let i = 1; i <= nrOfCStrings; i++){
             tabs.appendChild(createCstrTab(i));
             tabpanels.appendChild(createCstrTabPanel(i));
         }
diff --git a/chrome/thunderlink/content/preferences.xul b/chrome/thunderlink/content/preferences.xul
index 182d1aa..4bea34b 100644
--- a/chrome/thunderlink/content/preferences.xul
+++ b/chrome/thunderlink/content/preferences.xul
@@ -8,18 +8,34 @@
             <preference id="prefs_customTlString2" name="extensions.thunderlink.custom-tl-string-2" type="string"/>
             <preference id="prefs_customTlString3" name="extensions.thunderlink.custom-tl-string-3" type="string"/>
             <preference id="prefs_customTlString4" name="extensions.thunderlink.custom-tl-string-4" type="string"/>
+            <preference id="prefs_customTlString5" name="extensions.thunderlink.custom-tl-string-5" type="string"/>
+            <preference id="prefs_customTlString6" name="extensions.thunderlink.custom-tl-string-6" type="string"/>
+            <preference id="prefs_customTlString7" name="extensions.thunderlink.custom-tl-string-7" type="string"/>
+            <preference id="prefs_customTlString8" name="extensions.thunderlink.custom-tl-string-8" type="string"/>
             <preference id="prefs_customTlString1title" name="extensions.thunderlink.custom-tl-string-1-title" type="string"/>
             <preference id="prefs_customTlString2title" name="extensions.thunderlink.custom-tl-string-2-title" type="string"/>
             <preference id="prefs_customTlString3title" name="extensions.thunderlink.custom-tl-string-3-title" type="string"/>
             <preference id="prefs_customTlString4title" name="extensions.thunderlink.custom-tl-string-4-title" type="string"/>
+            <preference id="prefs_customTlString5title" name="extensions.thunderlink.custom-tl-string-5-title" type="string"/>
+            <preference id="prefs_customTlString6title" name="extensions.thunderlink.custom-tl-string-6-title" type="string"/>
+            <preference id="prefs_customTlString7title" name="extensions.thunderlink.custom-tl-string-7-title" type="string"/>
+            <preference id="prefs_customTlString8title" name="extensions.thunderlink.custom-tl-string-8-title" type="string"/>
             <preference id="prefs_customTlString1tagcheckbox" name="extensions.thunderlink.custom-tl-string-1-tagcheckbox" type="bool"/>
             <preference id="prefs_customTlString2tagcheckbox" name="extensions.thunderlink.custom-tl-string-2-tagcheckbox" type="bool"/>
             <preference id="prefs_customTlString3tagcheckbox" name="extensions.thunderlink.custom-tl-string-3-tagcheckbox" type="bool"/>
             <preference id="prefs_customTlString4tagcheckbox" name="extensions.thunderlink.custom-tl-string-4-tagcheckbox" type="bool"/>
+            <preference id="prefs_customTlString5tagcheckbox" name="extensions.thunderlink.custom-tl-string-5-tagcheckbox" type="bool"/>
+            <preference id="prefs_customTlString6tagcheckbox" name="extensions.thunderlink.custom-tl-string-6-tagcheckbox" type="bool"/>
+            <preference id="prefs_customTlString7tagcheckbox" name="extensions.thunderlink.custom-tl-string-7-tagcheckbox" type="bool"/>
+            <preference id="prefs_customTlString8tagcheckbox" name="extensions.thunderlink.custom-tl-string-8-tagcheckbox" type="bool"/>
             <preference id="prefs_customTlString1tag" name="extensions.thunderlink.custom-tl-string-1-tag" type="int"/>
             <preference id="prefs_customTlString2tag" name="extensions.thunderlink.custom-tl-string-2-tag" type="int"/>
             <preference id="prefs_customTlString3tag" name="extensions.thunderlink.custom-tl-string-3-tag" type="int"/>
             <preference id="prefs_customTlString4tag" name="extensions.thunderlink.custom-tl-string-4-tag" type="int"/>
+            <preference id="prefs_customTlString5tag" name="extensions.thunderlink.custom-tl-string-5-tag" type="int"/>
+            <preference id="prefs_customTlString6tag" name="extensions.thunderlink.custom-tl-string-6-tag" type="int"/>
+            <preference id="prefs_customTlString7tag" name="extensions.thunderlink.custom-tl-string-7-tag" type="int"/>
+            <preference id="prefs_customTlString8tag" name="extensions.thunderlink.custom-tl-string-8-tag" type="int"/>
             <preference id="prefs_openTlBehaviour" name="extensions.thunderlink.open-tl-behaviour" type="string"/>
         </preferences>
         <vbox>
diff --git a/defaults/preferences/thunderlink.js b/defaults/preferences/thunderlink.js
index f14dfb1..b6c228b 100644
--- a/defaults/preferences/thunderlink.js
+++ b/defaults/preferences/thunderlink.js
@@ -14,4 +14,20 @@ pref("extensions.thunderlink.custom-tl-string-4-title", "Custom String 4");
 pref("extensions.thunderlink.custom-tl-string-4", "<thunderlink>");
 pref("extensions.thunderlink.custom-tl-string-4-tagcheckbox", false);
 pref("extensions.thunderlink.custom-tl-string-4-tag", 1);
+pref("extensions.thunderlink.custom-tl-string-5-title", "Custom String 5");
+pref("extensions.thunderlink.custom-tl-string-5", "<thunderlink>");
+pref("extensions.thunderlink.custom-tl-string-5-tagcheckbox", false);
+pref("extensions.thunderlink.custom-tl-string-5-tag", 1);
+pref("extensions.thunderlink.custom-tl-string-6-title", "Custom String 6");
+pref("extensions.thunderlink.custom-tl-string-6", "<thunderlink>");
+pref("extensions.thunderlink.custom-tl-string-6-tagcheckbox", false);
+pref("extensions.thunderlink.custom-tl-string-6-tag", 1);
+pref("extensions.thunderlink.custom-tl-string-7-title", "Custom String 7");
+pref("extensions.thunderlink.custom-tl-string-7", "<thunderlink>");
+pref("extensions.thunderlink.custom-tl-string-7-tagcheckbox", false);
+pref("extensions.thunderlink.custom-tl-string-7-tag", 1);
+pref("extensions.thunderlink.custom-tl-string-8-title", "Custom String 8");
+pref("extensions.thunderlink.custom-tl-string-8", "<thunderlink>");
+pref("extensions.thunderlink.custom-tl-string-8-tagcheckbox", false);
+pref("extensions.thunderlink.custom-tl-string-8-tag", 1);
 pref("extensions.thunderlink.open-tl-behaviour", "bySelecting");