diff --git a/po/ja/falkon_hellopython.po b/po/ja/falkon_hellopython.po
index 282a0139c..6acac9190 100644
--- a/po/ja/falkon_hellopython.po
+++ b/po/ja/falkon_hellopython.po
@@ -10,7 +10,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Accelerator-Marker: &\n"
 "X-Text-Markup: kde4\n"
 
diff --git a/po/ja/falkon_helloqml.po b/po/ja/falkon_helloqml.po
index ebb1f228e..231306abe 100644
--- a/po/ja/falkon_helloqml.po
+++ b/po/ja/falkon_helloqml.po
@@ -10,7 +10,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Accelerator-Marker: &\n"
 "X-Text-Markup: kde4\n"
 
diff --git a/po/ja/falkon_middleclickloader.po b/po/ja/falkon_middleclickloader.po
index 993899c65..01b1def1e 100644
--- a/po/ja/falkon_middleclickloader.po
+++ b/po/ja/falkon_middleclickloader.po
@@ -10,7 +10,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Accelerator-Marker: &\n"
 "X-Text-Markup: kde4\n"
 
diff --git a/po/ja/falkon_runaction.po b/po/ja/falkon_runaction.po
index 645f3b56f..f73cbf25c 100644
--- a/po/ja/falkon_runaction.po
+++ b/po/ja/falkon_runaction.po
@@ -10,7 +10,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Accelerator-Marker: &\n"
 "X-Text-Markup: kde4\n"
 
diff --git a/poqm/ja/falkon_autoscroll_qt.po b/poqm/ja/falkon_autoscroll_qt.po
index b25619f71..bef53c426 100644
--- a/poqm/ja/falkon_autoscroll_qt.po
+++ b/poqm/ja/falkon_autoscroll_qt.po
@@ -13,7 +13,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Language: ja_JP\n"
 "X-Qt-Contexts: true\n"
 "X-Accelerator-Marker: &\n"
diff --git a/poqm/ja/falkon_flashcookiemanager_qt.po b/poqm/ja/falkon_flashcookiemanager_qt.po
index 3738f9323..b45f7e040 100644
--- a/poqm/ja/falkon_flashcookiemanager_qt.po
+++ b/poqm/ja/falkon_flashcookiemanager_qt.po
@@ -13,7 +13,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Language: ja_JP\n"
 "X-Qt-Contexts: true\n"
 "X-Accelerator-Marker: &\n"
diff --git a/poqm/ja/falkon_gnomekeyringpasswords_qt.po b/poqm/ja/falkon_gnomekeyringpasswords_qt.po
index b1cbfefe9..21bf79a50 100644
--- a/poqm/ja/falkon_gnomekeyringpasswords_qt.po
+++ b/poqm/ja/falkon_gnomekeyringpasswords_qt.po
@@ -13,7 +13,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Language: ja_JP\n"
 "X-Qt-Contexts: true\n"
 "X-Accelerator-Marker: &\n"
diff --git a/poqm/ja/falkon_greasemonkey_qt.po b/poqm/ja/falkon_greasemonkey_qt.po
index 7fbfb2bfc..71c06cb0f 100644
--- a/poqm/ja/falkon_greasemonkey_qt.po
+++ b/poqm/ja/falkon_greasemonkey_qt.po
@@ -13,7 +13,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Language: ja_JP\n"
 "X-Qt-Contexts: true\n"
 "X-Accelerator-Marker: &\n"
diff --git a/poqm/ja/falkon_kdeframeworksintegration_qt.po b/poqm/ja/falkon_kdeframeworksintegration_qt.po
index 21c8d4e2d..530a3030f 100644
--- a/poqm/ja/falkon_kdeframeworksintegration_qt.po
+++ b/poqm/ja/falkon_kdeframeworksintegration_qt.po
@@ -13,7 +13,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Language: ja_JP\n"
 "X-Qt-Contexts: true\n"
 "X-Accelerator-Marker: &\n"
diff --git a/poqm/ja/falkon_mousegestures_qt.po b/poqm/ja/falkon_mousegestures_qt.po
index 78416a7e5..7353b8075 100644
--- a/poqm/ja/falkon_mousegestures_qt.po
+++ b/poqm/ja/falkon_mousegestures_qt.po
@@ -13,7 +13,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Language: ja_JP\n"
 "X-Qt-Contexts: true\n"
 "X-Accelerator-Marker: &\n"
diff --git a/poqm/ja/falkon_pim_qt.po b/poqm/ja/falkon_pim_qt.po
index 4641b4414..e2bb66597 100644
--- a/poqm/ja/falkon_pim_qt.po
+++ b/poqm/ja/falkon_pim_qt.po
@@ -13,7 +13,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Language: ja_JP\n"
 "X-Qt-Contexts: true\n"
 "X-Accelerator-Marker: &\n"
diff --git a/poqm/ja/falkon_qt.po b/poqm/ja/falkon_qt.po
index e641da24c..a7618542d 100644
--- a/poqm/ja/falkon_qt.po
+++ b/poqm/ja/falkon_qt.po
@@ -12,7 +12,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Language: ja_JP\n"
 "X-Qt-Contexts: true\n"
 "X-Accelerator-Marker: &\n"
@@ -348,9 +348,6 @@ msgid_plural ""
 msgstr[0] ""
 "%n 個のタブが開かれており、セッションは保存されません。 \n"
 "本当にこのウィンドウを閉じますか?"
-msgstr[1] ""
-"%n 個のタブが開かれており、セッションは保存されません。 \n"
-"本当にこのウィンドウを閉じますか?"
 
 #: lib/app/browserwindow.cpp:1504
 msgctxt "BrowserWindow|"
@@ -1620,7 +1617,6 @@ msgctxt "DownloadItem|"
 msgid "%n seconds"
 msgid_plural "%n seconds"
 msgstr[0] "%n 秒"
-msgstr[1] "%n 秒"
 
 #: lib/downloads/downloaditem.cpp:201
 #, qt-format
@@ -1628,7 +1624,6 @@ msgctxt "DownloadItem|"
 msgid "%n minutes"
 msgid_plural "%n minutes"
 msgstr[0] "%n 分"
-msgstr[1] "%n 分"
 
 #: lib/downloads/downloaditem.cpp:206
 #, qt-format
@@ -1636,7 +1631,6 @@ msgctxt "DownloadItem|"
 msgid "%n hours"
 msgid_plural "%n hours"
 msgstr[0] "%n 時間"
-msgstr[1] "%n 時間"
 
 #: lib/downloads/downloaditem.cpp:213
 msgctxt "DownloadItem|"
diff --git a/poqm/ja/falkon_statusbaricons_qt.po b/poqm/ja/falkon_statusbaricons_qt.po
index e125612cf..ac02b0e3c 100644
--- a/poqm/ja/falkon_statusbaricons_qt.po
+++ b/poqm/ja/falkon_statusbaricons_qt.po
@@ -13,7 +13,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Language: ja_JP\n"
 "X-Qt-Contexts: true\n"
 "X-Accelerator-Marker: &\n"
diff --git a/poqm/ja/falkon_tabmanager_qt.po b/poqm/ja/falkon_tabmanager_qt.po
index de55b0424..317a62119 100644
--- a/poqm/ja/falkon_tabmanager_qt.po
+++ b/poqm/ja/falkon_tabmanager_qt.po
@@ -13,7 +13,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Language: ja_JP\n"
 "X-Qt-Contexts: true\n"
 "X-Accelerator-Marker: &\n"
diff --git a/poqm/ja/falkon_testplugin_qt.po b/poqm/ja/falkon_testplugin_qt.po
index 5d6449324..ec743a189 100644
--- a/poqm/ja/falkon_testplugin_qt.po
+++ b/poqm/ja/falkon_testplugin_qt.po
@@ -13,7 +13,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Language: ja_JP\n"
 "X-Qt-Contexts: true\n"
 "X-Accelerator-Marker: &\n"
diff --git a/poqm/ja/falkon_verticaltabs_qt.po b/poqm/ja/falkon_verticaltabs_qt.po
index 176ffed08..f651f9fc2 100644
--- a/poqm/ja/falkon_verticaltabs_qt.po
+++ b/poqm/ja/falkon_verticaltabs_qt.po
@@ -9,7 +9,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=2; plural=n != 1;\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 "X-Accelerator-Marker: &\n"
 "X-Text-Markup: qtrich\n"
 "X-Qt-Contexts: true\n"