diff --git a/chrome/content/foxage2ch/findThread.js b/chrome/content/foxage2ch/findThread.js
index 3ec879b..50732a0 100644
--- a/chrome/content/foxage2ch/findThread.js
+++ b/chrome/content/foxage2ch/findThread.js
@@ -78,7 +78,7 @@ var FindThread = {
 						key: RegExp.$1,
 						created: parseInt(RegExp.$1, 10) * 1000 * 1000,
 						lastRes: parseInt(RegExp.$3, 10),
-						title: FoxAge2chUtils.unescapeEntities(FoxAge2chUtils.sanitizeTitle(RegExp.$2))
+						title: FoxAge2chUtils.sanitizeTitle(FoxAge2chUtils.unescapeEntities(RegExp.$2))
 					});
 			}, this);
 			this.owner.wizard.canAdvance = true;
diff --git a/chrome/content/foxage2ch/import.js b/chrome/content/foxage2ch/import.js
index b4976e0..4e5faf9 100644
--- a/chrome/content/foxage2ch/import.js
+++ b/chrome/content/foxage2ch/import.js
@@ -204,8 +204,7 @@ var ImportProcessor = {
 			var type = this._getProperty(res, "type");
 			var title = this._getProperty(res, "title");
 			var status = this._getProperty(res, "status");
-			title = FoxAge2chUtils.unescapeEntities(title);
-			title = FoxAge2chUtils.sanitizeTitle(title);
+			title = FoxAge2chUtils.sanitizeTitle(FoxAge2chUtils.unescapeEntities(title));
 			var flags = 0;
 			if (status.indexOf("checking") >= 0)
 				flags |= FoxAge2chUtils.STATUS_CHECKING;
diff --git a/components/service.js b/components/service.js
index 2768157..e4d904b 100644
--- a/components/service.js
+++ b/components/service.js
@@ -736,8 +736,7 @@ FoxAge2chService.prototype = {
 				            ? /<h1>([^<]+)<\/h1>/i : /<title>([^<]+)<\/title>/i;
 				if (pattern.test(aResponseText)) {
 					var title = RegExp.$1;
-					title = FoxAge2chUtils.unescapeEntities(title);
-					title = FoxAge2chUtils.sanitizeTitle(title);
+					title = FoxAge2chUtils.sanitizeTitle(FoxAge2chUtils.unescapeEntities(title));
 					if (item.type == FoxAge2chUtils.TYPE_BOARD)
 						// 「＠2ch掲示板」「＠bbspink掲示板」などをカット
 						title = title.replace(/\uFF20.+$/, "");
@@ -787,8 +786,7 @@ FoxAge2chService.prototype = {
 				var pattern = new RegExp(dat + "\\.(?:dat<>|cgi,)(.+)\\s*\\(\\d+\\)");
 				if (pattern.test(aResponseText)) {
 					var title = RegExp.$1;
-					title = FoxAge2chUtils.unescapeEntities(title);
-					title = FoxAge2chUtils.sanitizeTitle(title);
+					title = FoxAge2chUtils.sanitizeTitle(FoxAge2chUtils.unescapeEntities(title));
 					FoxAge2chUtils.service.changeItemProperty(item, "title", title);
 					FoxAge2chUtils.rebuildTree(item.id);
 					FoxAge2chUtils.showMessage(FoxAge2chUtils.getLocaleString("SUCCESS"));
diff --git a/defaults/preferences/foxage2ch-prefs.js b/defaults/preferences/foxage2ch-prefs.js
index 5866ae4..4b7a27a 100644
--- a/defaults/preferences/foxage2ch-prefs.js
+++ b/defaults/preferences/foxage2ch-prefs.js
@@ -17,3 +17,5 @@ pref("extensions.foxage2ch.loadInterval", 3);
 pref("extensions.foxage2ch.dataDir.default", true);
 pref("extensions.foxage2ch.dataDir.path", "");
 pref("extensions.foxage2ch.maxBackups", 5);
+pref("extensions.foxage2ch.removeAutoAddedWords", true);
+pref("extensions.foxage2ch.removeDecorations", true);
diff --git a/modules/utils.jsm b/modules/utils.jsm
index 5f45ed5..81ca357 100644
--- a/modules/utils.jsm
+++ b/modules/utils.jsm
@@ -438,24 +438,25 @@ var FoxAge2chUtils = {
 		};
 	},
 
-	// 「&」「<」「>」「"」の実体参照をデコードする
+	// 「&」「<」「>」「"」「©」の文字参照をデコードする
 	unescapeEntities: function F2U_unescapeEntities(aString) {
 		aString = aString.replace(/&amp;/g, '&');
 		aString = aString.replace(/&lt;/g, '<');
 		aString = aString.replace(/&gt;/g, '>');
 		aString = aString.replace(/&quot;/g, '"');
+		aString = aString.replace(/&copy;|&#169;/g, '\u00A9');
 		return aString;
 	},
 
 	// タイトルの余計な文字列を削除する
 	sanitizeTitle: function F2U_sanitizeTitle(aTitle) {
-		aTitle = aTitle.replace("[\u8EE2\u8F09\u7981\u6B62]", "", "g");	// [転載禁止]
-		aTitle = aTitle.replace("[\u7121\u65AD\u8EE2\u8F09\u7981\u6B62]", "", "g");	// [無断転載禁止]
-		aTitle = aTitle.replace("&copy;2ch.net", "", "g");	// ©2ch.net
-		aTitle = aTitle.replace("&#169;2ch.net", "", "g");	// ©2ch.net
-		aTitle = aTitle.replace("&copy;bbspink.com", "", "g");	// ©bbspink.com
-		aTitle = aTitle.replace("&#169;bbspink.com", "", "g");	// @bbspink.com
-		aTitle = aTitle.replace(/\u25A0|\u25C6|\u25CF|\u2605|\u2606/g, " ");	// ■,◆,●,★,☆
+		if (FoxAge2chUtils.prefs.getBoolPref("removeAutoAddedWords")) {
+			aTitle = aTitle.replace(/\[(?:\u7121\u65AD)?\u8EE2\u8F09\u7981\u6B62\]/g, "");	// [無断転載禁止],[転載禁止]
+			aTitle = aTitle.replace(/\u00A9(?:2ch\.net|bbspink\.com)/g, "");	// ©2ch.net,©bbspink.com
+		}
+		if (FoxAge2chUtils.prefs.getBoolPref("removeDecorations")) {
+			aTitle = aTitle.replace(/\u25A0|\u25A1|\u25C6|\u25C7|\u25CF|\u25CB|\u2605|\u2606|\u25B2|\u25B3|\u25BC|\u25BD/g, " ");	// ■,□,◆,◇,●,○,★,☆,▲,△,▼,▽
+		}
 		aTitle = aTitle.replace(/[\u0000-\u001F]/g, "");	// 制御文字
 		aTitle = aTitle.replace(/\s+/g, " ");	// 連続する空白
 		aTitle = aTitle.replace(/^\s+|\s+$/g, "");	// 先頭・末尾の空白