diff --git a/chrome/content/i18n.js b/chrome/content/i18n.js
new file mode 100644
index 000000000..7eb641496
--- /dev/null
+++ b/chrome/content/i18n.js
@@ -0,0 +1,49 @@
+var i18n = {
+	updateString(string) {
+		let re = new RegExp(this.keyPrefix + "(.+?)__", "g");
+		return string.replace(re, matched => {
+			const key = matched.slice(this.keyPrefix.length, -2);
+			let rv = this.extension 
+						? this.extension.localeData.localizeMessage(key)
+						: messenger.i18n.getMessage(key);
+			return rv || matched;
+		});
+	},
+
+	updateSubtree(node) {
+		const texts = document.evaluate(
+			'descendant::text()[contains(self::text(), "' + this.keyPrefix + '")]',
+			node,
+			null,
+			XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,
+			null
+		);
+		for (let i = 0, maxi = texts.snapshotLength; i < maxi; i++) {
+			const text = texts.snapshotItem(i);
+			if (text.nodeValue.includes(this.keyPrefix)) text.nodeValue = this.updateString(text.nodeValue);
+		}
+
+		const attributes = document.evaluate(
+			'descendant::*/attribute::*[contains(., "' + this.keyPrefix + '")]',
+			node,
+			null,
+			XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,
+			null
+		);
+		for (let i = 0, maxi = attributes.snapshotLength; i < maxi; i++) {
+			const attribute = attributes.snapshotItem(i);
+			if (attribute.value.includes(this.keyPrefix)) attribute.value = this.updateString(attribute.value);
+		}
+	},
+
+	updateDocument(options = {}) {		
+		this.extension = null;
+		this.keyPrefix = "__MSG_";
+		if (options) {
+			if (options.extension) this.extension = options.extension;
+			if (options.keyPrefix) this.keyPrefix = options.keyPrefix;
+		}
+		this.updateSubtree(document);
+	}
+};
+
diff --git a/chrome/content/scripts/qf-filterlist.js b/chrome/content/scripts/qf-filterlist.js
index 457d93322..36e133939 100644
--- a/chrome/content/scripts/qf-filterlist.js
+++ b/chrome/content/scripts/qf-filterlist.js
@@ -1,3 +1,4 @@
+/* this module is obsolete */
 var { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
 
 Services.scriptloader.loadSubScript("chrome://quickfolders/content/quickfolders.js", window, "UTF-8");
@@ -8,56 +9,15 @@ Services.scriptloader.loadSubScript("chrome://quickfolders/content/quickfolders-
 Services.scriptloader.loadSubScript("chrome://quickfolders/content/quickfolders-filterList.js", window, "UTF-8");
 Services.scriptloader.loadSubScript("chrome://quickfolders/content/overlayFilterList.js", window, "UTF-8");
 
+
 function onLoad(activatedWhileWindowOpen) {
     let layout = WL.injectCSS("chrome://quickfolders/content/filterList.css");
  
     WL.injectElements(`
     
     <window id="filterListDialog">
-	
-    <label id="qf-FilterCount-n-of-m"
-        hidden="true"
-        value="&qf.label.filterCountN_of_M;" />
-        
-    <label id="qf-FilterCount-items"
-        hidden="true"
-        value="&qf.label.filterEntities;" />
-    <label id="qf-FilterCount-1-item"
-        hidden="true"
-        value="&qf.label.filterSingleEntity;" />
-
 
-    <html:input id="qf-Filter"
-        flex="7"
-        type="search"
-        oncommand="QuickFolders.FilterList.onFindFilter(false, true);"
-        emptytext="&qf.textbox.searchBox.emptyText;"
-        tooltiptext="&qf.textbox.searchBox.toolTip;"
-        isempty="true"
-        timeout="300"
-    />
-    
-    <label id="qf-FilterCount" 
-        flex="1"
-        />
 
-    <button 
-        id="qf-reorderButtonTop"
-        insertbefore="reorderUpButton"
-        label="&qf.button.reorderButtonTop;"
-        accesskey="&qf.button.reorderButtonTop.accessKey;"
-        tooltiptext="&qf.button.reorderButtonTop.toolTip;"
-        oncommand="QuickFolders.FilterList.onTop(event);"
-    />
-    
-    <button 
-        id="qf-reorderButtonBottom"
-        insertafter="reorderDownButton"
-        label="&qf.button.reorderButtonBottom;"
-        accesskey="&qf.button.reorderButtonBottom.accessKey;"
-        tooltiptext="&qf.button.reorderButtonBottom.toolTip;"
-        oncommand="QuickFolders.FilterList.onBottom(event);"
-    />
     </window>
     
     `, ["chrome://quickfolders/locale/overlay.dtd"]);
diff --git a/manifest.json b/manifest.json
index 040ab2948..bb56d8063 100644
--- a/manifest.json
+++ b/manifest.json
@@ -2,8 +2,8 @@
   "author" : "Axel Grude",
   "manifest_version" : 2,
   "name" : "QuickFolders",
-  "description" : "Bookmark your favorite mail folders in Thunderbird.",
-  "version" : "5.0pre98",
+  "description" : "__MSG_extensionDescription__",
+  "version" : "5.0pre100",
   "default_locale": "en",
   "author": "Axel Grude, Klaus Buecher/opto",
   "developer" : { 
diff --git a/qf-background.js b/qf-background.js
index bd68bbb2b..cc10d4de0 100644
--- a/qf-background.js
+++ b/qf-background.js
@@ -67,14 +67,12 @@ async function main() {
     /* not necessary in Tb78+    */
     messenger.WindowListener.registerWindow("chrome://messenger/content/messenger.xul", "chrome/content/scripts/qf-messenger.js");
     messenger.WindowListener.registerWindow("chrome://messenger/content/messengercompose.xul", "chrome/content/scripts/qf-composer.js");
-    messenger.WindowListener.registerWindow("chrome://messenger/content/FilterListDialog.xul", "chrome/content/scripts/qf-filterlist.js");
     messenger.WindowListener.registerWindow("chrome://messenger/content/SearchDialog.xul", "chrome/content/scripts/qf-searchDialog.js");
     messenger.WindowListener.registerWindow("chrome://messenger/content/customizeToolbar.xul", "chrome/content/scripts/qf-customizetoolbar.js");
     messenger.WindowListener.registerWindow("chrome://messenger/content/messageWindow.xul", "chrome/content/scripts/qf-messageWindow.js");
     
     messenger.WindowListener.registerWindow("chrome://messenger/content/messenger.xhtml", "chrome/content/scripts/qf-messenger.js");
     messenger.WindowListener.registerWindow("chrome://messenger/content/messengercompose.xhtml", "chrome/content/scripts/qf-composer.js");
-    messenger.WindowListener.registerWindow("chrome://messenger/content/FilterListDialog.xhtml", "chrome/content/scripts/qf-filterlist.js");
     messenger.WindowListener.registerWindow("chrome://messenger/content/SearchDialog.xhtml", "chrome/content/scripts/qf-searchDialog.js");
     messenger.WindowListener.registerWindow("chrome://messenger/content/customizeToolbar.xhtml", "chrome/content/scripts/qf-customizetoolbar.js");
     messenger.WindowListener.registerWindow("chrome://messenger/content/messageWindow.xhtml", "chrome/content/scripts/qf-messageWindow.js");  
diff --git a/release-notes.html b/release-notes.html
index f711dfe68..08bf73397 100644
--- a/release-notes.html
+++ b/release-notes.html
@@ -1,4 +1,3 @@
-Starting from 0 again, as TbSync suggested.
 
 <ul>
 <li class="psa"> I am currently paying somebody to migrate all my Add-on support sites away from the free host on mozdev.org, which is going to close operation end of June. To keep having support sites and ongoing development, please <a href="http://sites.fastspring.com/quickfolders/product/quickfolders?referrer=qf-version-page">buy a license</a> (the migration will cost around $500, so there are some expense I hope to recover from the user community).
diff --git a/revision.txt b/revision.txt
index 8d879f164..8867c5d92 100644
--- a/revision.txt
+++ b/revision.txt
@@ -1 +1 @@
-98 
+100