diff --git a/clients/aurorae/src/aurorae.desktop b/clients/aurorae/src/aurorae.desktop
index ee82997024..8b71584354 100644
--- a/clients/aurorae/src/aurorae.desktop
+++ b/clients/aurorae/src/aurorae.desktop
@@ -21,6 +21,7 @@ Name[hr]=Tematski mehanizam za ukrase Aurorae
 Name[ia]=Motor de thema de decoration Aurorae
 Name[id]=Mesin Tema Dekorasi Aurorae
 Name[it]=Motore dei temi decorativi Aurorae
+Name[ja]=オーロラ装飾テーマエンジン
 Name[kk]=Aurorae безендіру нақыш теігі
 Name[km]=ម៉ាស៊ីន​ស្បែក​តុបតែង​ Aurorae
 Name[ko]=Aurorae 장식 테마 엔진
diff --git a/clients/aurorae/themes/example-deco/metadata.desktop b/clients/aurorae/themes/example-deco/metadata.desktop
index 4ef92a6d1b..80b51d3127 100644
--- a/clients/aurorae/themes/example-deco/metadata.desktop
+++ b/clients/aurorae/themes/example-deco/metadata.desktop
@@ -83,6 +83,7 @@ Comment[hr]=Primjer teme bazirane na temi radne površine Air.
 Comment[ia]=Un thema de exemplo basate su le thema de scriptorio Air
 Comment[id]=Sebuah tema contoh berbasis tema desktop Udara.
 Comment[it]=Un tema esemplificativo basato sul tema del desktop Aria.
+Comment[ja]=Air デスクトップテーマに基づくサンプルテーマ。
 Comment[kk]=Air үстел нақышын негізделгеннің мысалы
 Comment[km]=ស្បែក​គំរូ​ដែលមាន​មូលដ្ឋាន​លើ​ស្បែក​ផ្ទៃតុ​ខ្យល់ ។
 Comment[ko]=Air 데스크톱 테마를 기반으로 한 예제 테마
diff --git a/effects/_test/demo_liquid.desktop b/effects/_test/demo_liquid.desktop
index a36c80079d..4802cbcae7 100644
--- a/effects/_test/demo_liquid.desktop
+++ b/effects/_test/demo_liquid.desktop
@@ -30,6 +30,7 @@ Name[ia]=Demo Liquid
 Name[id]=Demo Cair
 Name[is]=Sýnishorn af Vökva
 Name[it]=Dimostrazione di liquido
+Name[ja]=Liquid デモ
 Name[kk]=Сүйықтың мысалы
 Name[km]=ការ​បង្ហាញ​​វត្ថុ​រាវ​សាក​ល្បង​
 Name[kn]=ದ್ರವ ನಿದರ್ಶನ (ಡೆಮೋ)
diff --git a/effects/_test/demo_shakymove.desktop b/effects/_test/demo_shakymove.desktop
index 331e9a3894..5ca84a0dfd 100644
--- a/effects/_test/demo_shakymove.desktop
+++ b/effects/_test/demo_shakymove.desktop
@@ -31,6 +31,7 @@ Name[ia]=Demo Shaky Move
 Name[id]=Demo Gerakan Lemah
 Name[is]=Sýnishorn af SkjálfandiHreyfing
 Name[it]=Dimostrazione di scossa
+Name[ja]=Shaky Move デモ
 Name[kk]=Жылан жүрісінің мысалы
 Name[km]=សាកល្បង​បង្ហាញ​ភាព​យន្ត​រន្ធត់
 Name[kn]=ಅಸ್ಥಿರ ಸ್ಥಾನಾಂತರ (ಶೇಕಿ ಮೂವ್) ನಿದರ್ಶನ
diff --git a/effects/_test/demo_shiftworkspaceup.desktop b/effects/_test/demo_shiftworkspaceup.desktop
index 74771a3ce7..38c0a5c628 100644
--- a/effects/_test/demo_shiftworkspaceup.desktop
+++ b/effects/_test/demo_shiftworkspaceup.desktop
@@ -30,6 +30,7 @@ Name[ia]=Demo ShiftWorkSpaceUp
 Name[id]=Demo ShiftWorkspaceUp
 Name[is]=Sýnishorn SkellaVinnuborðiUpp
 Name[it]=Dimostrazione di sollevamento dello spazio di lavoro
+Name[ja]=ShiftWorkspaceUp デモ
 Name[kk]=ӨрісЖоғарыЫғыстыру мысалы
 Name[km]=ការ​បង្ហាញ ShiftWorkspaceUp សាកល្បង
 Name[kn]=ಕಾರ್ಯಕ್ಷೇತ್ರ ಮೇಲೆ ಸರಿಸು ನಿದರ್ಶನ (ಡೆಮೋ)
diff --git a/effects/_test/demo_showpicture.desktop b/effects/_test/demo_showpicture.desktop
index facf96a4f2..98c061883b 100644
--- a/effects/_test/demo_showpicture.desktop
+++ b/effects/_test/demo_showpicture.desktop
@@ -30,6 +30,7 @@ Name[ia]=Demo Monstra Photo
 Name[id]=Demo ShowPicture
 Name[is]=Sýnishorn SýnaMynd
 Name[it]=Dimostrazione di visore di immagini
+Name[ja]=画像表示デモ
 Name[kk]=СуретКөрсетудің мысалы
 Name[km]=ការ​បង្ហាញ​រូបភាព​សាកល្បង
 Name[kn]=ಚಿತ್ರ ತೋರಿಸು ನಿದರ್ಶನ
diff --git a/effects/_test/demo_wavywindows.desktop b/effects/_test/demo_wavywindows.desktop
index a00f6c4d52..60e294a1b4 100644
--- a/effects/_test/demo_wavywindows.desktop
+++ b/effects/_test/demo_wavywindows.desktop
@@ -31,6 +31,7 @@ Name[ia]=Demo Fenestras Undose
 Name[id]=Demo Jendela Melengkung
 Name[is]=Sýnishorn VeifandiGlugga
 Name[it]=Dimostrazione di finestre ondeggianti
+Name[ja]=波打ちウィンドウデモ
 Name[kk]=Толқынды терезелер мысалы
 Name[km]=បង្ហាញ​បង្អួច​ទឹក​រលក​​សាកល្បង
 Name[kn]=ಅಲೆಯಾಕಾರದ ಕಿಟಕಿ ನಿದರ್ಶನ
diff --git a/effects/_test/gears.desktop b/effects/_test/gears.desktop
index 3b21b6351b..7a388b9c90 100644
--- a/effects/_test/gears.desktop
+++ b/effects/_test/gears.desktop
@@ -22,6 +22,7 @@ Name[ia]=Rotas dentate del Cubo
 Name[id]=Gigi Kubus
 Name[is]=Kubbagírar
 Name[it]=Ingranaggi del cubo
+Name[ja]=キューブギア
 Name[kk]=Текшенің тістегіршектері
 Name[km]=គូប​រាង​ស្ពឺ
 Name[kn]=ಘನಾಕೃತಿಯ ಸಜ್ಜು ಸಾಮಗ್ರಿಗಳು(Gears)
@@ -77,6 +78,7 @@ Comment[ia]=Monstrar  rotas dentate intra le cubo
 Comment[id]=Tampilkan gigi di dalam kubus
 Comment[is]=Sýnir gírhjól innan í kassanum
 Comment[it]=Mostra gli ingranaggi nel cubo
+Comment[ja]=キューブ内にギアを表示します
 Comment[kk]=Текшенің ішіндегі тістегіршектерін көрсету
 Comment[km]=បង្ហាញ​ស្ពឺ​ខាង​ក្នុងគូប
 Comment[ko]=큐브 안에 기어를 표시합니다
diff --git a/effects/_test/swiveltabs/swiveltabs.desktop b/effects/_test/swiveltabs/swiveltabs.desktop
index a2fa1b4ba3..30aa1d73e3 100644
--- a/effects/_test/swiveltabs/swiveltabs.desktop
+++ b/effects/_test/swiveltabs/swiveltabs.desktop
@@ -17,6 +17,7 @@ Name[ia]=Schedas cardine
 Name[id]=Tab Putar
 Name[is]=Snúa flipum
 Name[it]=Fa' girare le schede
+Name[ja]=旋回タブ
 Name[kk]=Қойындыларды бұрау
 Name[km]=បង្វិល​ផ្ទាំង
 Name[ko]=돌아가는 탭
diff --git a/effects/_test/swiveltabs/swiveltabs_config.desktop b/effects/_test/swiveltabs/swiveltabs_config.desktop
index 5b416bfe4a..f329e9daf7 100644
--- a/effects/_test/swiveltabs/swiveltabs_config.desktop
+++ b/effects/_test/swiveltabs/swiveltabs_config.desktop
@@ -24,6 +24,7 @@ Name[ia]=Schedas cardine
 Name[id]=Tab Putar
 Name[is]=Snúa flipum
 Name[it]=Fa' girare le schede
+Name[ja]=旋回タブ
 Name[kk]=Қойындыларды бұрау
 Name[km]=បង្វិល​ផ្ទាំង
 Name[ko]=돌아가는 탭
diff --git a/effects/glide/glide.desktop b/effects/glide/glide.desktop
index e1e5c5a830..2b692f471b 100644
--- a/effects/glide/glide.desktop
+++ b/effects/glide/glide.desktop
@@ -6,6 +6,7 @@ Name[da]=Glid
 Name[en_GB]=Glide
 Name[es]=Glide
 Name[et]=Liuglemine
+Name[fr]=Glisser
 Name[ia]=Glissar
 Name[id]=Glide
 Name[is]=Svífa
@@ -33,6 +34,7 @@ Comment[da]=Glideeffekt til vinduer når de åbnes og lukkes
 Comment[en_GB]=Windows Glide Effect as they are open and closed
 Comment[es]=Efectos Glide cuando se abren y cierran ventanas
 Comment[et]=Akende liuglemise efekt nende avamisel ja sulgemisel
+Comment[fr]=Fait glisser les fenêtres lorsqu'elles sont ouvertes ou fermées
 Comment[ia]=Effectos de Glissar durante que illos es aperite e claudite
 Comment[id]=Efek Glid Jendela ketika jendela dibuka dan ditutup
 Comment[is]=Lætur glugga svífa þegar þeir eru opnaðir eða þeim er lokað
diff --git a/effects/glide/glide_config.desktop b/effects/glide/glide_config.desktop
index 2899fd2d52..b5967d264c 100644
--- a/effects/glide/glide_config.desktop
+++ b/effects/glide/glide_config.desktop
@@ -13,6 +13,7 @@ Name[da]=Glid
 Name[en_GB]=Glide
 Name[es]=Glide
 Name[et]=Liuglemine
+Name[fr]=Glisser
 Name[ia]=Glissar
 Name[id]=Glide
 Name[is]=Svífa
diff --git a/kcmkwin/kwindecoration/kwindecoration.desktop b/kcmkwin/kwindecoration/kwindecoration.desktop
index 2053c4bc66..2efa259e0b 100644
--- a/kcmkwin/kwindecoration/kwindecoration.desktop
+++ b/kcmkwin/kwindecoration/kwindecoration.desktop
@@ -20,6 +20,7 @@ Name[de]=Fensterdekoration
 Name[en_GB]=Window Decorations
 Name[es]=Decoración de ventanas
 Name[et]=Akna dekoratsioonid
+Name[fr]=Décoration de la fenêtre
 Name[hr]=Prozorski ukrasi
 Name[ia]=Decorationes de fenestra
 Name[id]=Dekorasi Jendela
diff --git a/kcmkwin/kwindesktop/desktop.desktop b/kcmkwin/kwindesktop/desktop.desktop
index 8b96908965..3edc29f50f 100644
--- a/kcmkwin/kwindesktop/desktop.desktop
+++ b/kcmkwin/kwindesktop/desktop.desktop
@@ -20,6 +20,7 @@ Name[de]=Virtuelle Arbeitsflächen
 Name[en_GB]=Virtual Desktops
 Name[es]=Escritorios virtuales
 Name[et]=Virtuaalsed töölauad
+Name[fr]=Bureaux virtuels
 Name[ga]=Deasca Fíorúla
 Name[hr]=Virtualne radne površine
 Name[ia]=Scriptorios Virtual
diff --git a/kcmkwin/kwinrules/kwinrules.desktop b/kcmkwin/kwinrules/kwinrules.desktop
index 30cf2d44a9..fbb5a77d95 100644
--- a/kcmkwin/kwinrules/kwinrules.desktop
+++ b/kcmkwin/kwinrules/kwinrules.desktop
@@ -19,6 +19,7 @@ Name[da]=Vinduesregler
 Name[de]=Fensterregeln
 Name[en_GB]=Window Rules
 Name[et]=Akna reeglid
+Name[fr]=Règles de la fenêtre
 Name[ia]=Regulas de Window
 Name[id]=Aturan Jendela
 Name[is]=Gluggahegðunarreglur
diff --git a/kcmkwin/kwintabbox/kwintabbox.desktop b/kcmkwin/kwintabbox/kwintabbox.desktop
index 607ccd97ad..be0cacf949 100644
--- a/kcmkwin/kwintabbox/kwintabbox.desktop
+++ b/kcmkwin/kwintabbox/kwintabbox.desktop
@@ -18,6 +18,7 @@ Name[da]=Opgaveskifter
 Name[de]=Anwendungsumschalter
 Name[en_GB]=Task Switcher
 Name[et]=Ülesannete vahetaja
+Name[fr]=Changeur de tâches
 Name[hr]=Prebacivač zadataka
 Name[ia]=Commutator de Carga
 Name[id]=Pengganti Tugas
diff --git a/kwin.notifyrc b/kwin.notifyrc
index 4cec158f2b..70d8f1805b 100644
--- a/kwin.notifyrc
+++ b/kwin.notifyrc
@@ -10,6 +10,7 @@ Comment[el]=Διαχειριστής παραθύρων Kwin
 Comment[en_GB]=KWin Window Manager
 Comment[es]=Gestor de ventanas KWin
 Comment[et]=Kwini aknahaldur
+Comment[fr]=Gestionnaire de fenêtre KWin
 Comment[hr]=Upravitelj prozora KWin
 Comment[ia]=Gerente de Fenestra KWin
 Comment[id]=Manajer Jendela KWin
@@ -6884,6 +6885,7 @@ Name[da]=Fliseudlægning aktiveret
 Name[en_GB]=Tiling Enabled
 Name[es]=Mosaico activado
 Name[et]=Paanimine on sisse lülitatud
+Name[fr]=Mosaïque activée
 Name[ia]=tegulas Habilitate
 Name[id]=Pengubinan Diaktifkan
 Name[it]=Affiancamento abilitato
@@ -6908,6 +6910,7 @@ Comment[da]=Fliseudlægningstilstand er blevet aktiveret
 Comment[en_GB]=Tiling mode has been enabled
 Comment[es]=Se ha activado el modo mosaico
 Comment[et]=Paanimine on sisse lülitatud
+Comment[fr]=Le mode des fenêtres en mosaïque a été activé.
 Comment[ia]=Le modo de tegula ha essite habilitate
 Comment[id]=Mode pengubinan telah diaktifkan
 Comment[it]=La modalità di affiancamento è stata attivata
@@ -6936,6 +6939,7 @@ Name[da]=Fliseudlægning deaktiveret
 Name[en_GB]=Tiling Disabled
 Name[es]=Mosaico desactivado
 Name[et]=Paanimine on välja lülitatud
+Name[fr]=Mosaïque désactivée
 Name[ia]=tegulas dishabilitate
 Name[id]=Pengubinan Dinonaktifkan
 Name[it]=Affiancamento disabilitato
@@ -6960,6 +6964,7 @@ Comment[da]=Fliseudlægningstilstand er blevet deaktiveret
 Comment[en_GB]=Tiling mode has been disabled
 Comment[es]=Se ha desactivado el modo mosaico
 Comment[et]=Paanimine on välja lülitatud
+Comment[fr]=Le mode des fenêtres en mosaïque a été désactivé.
 Comment[hr]=Popločavanje je onemogućeno
 Comment[ia]=Le mode de tegulas  ha essite dishabilitate
 Comment[id]=Tombol pengubinan telah dinonaktifkan
@@ -6989,6 +6994,7 @@ Name[da]=Layout af fliseudlægning ændret
 Name[en_GB]=Tiling Layout Changed
 Name[es]=Disposición de mosaico modificada
 Name[et]=Paanimispaigutust muudeti
+Name[fr]=Schéma de mosaïque modifié
 Name[ia]=Layout a tegulas Cambiate
 Name[id]=Tata Letak Pengubinan Diubah
 Name[it]=Schema di affiancamento modificato
@@ -7014,6 +7020,7 @@ Comment[da]=Layout af fliseudlægning er blevet ændret
 Comment[en_GB]=Tiling Layout has been changed
 Comment[es]=Se ha modificado la disposición del mosaico
 Comment[et]=Paanimispaigutust muudeti
+Comment[fr]=Le schéma de mosaïque a été modifié
 Comment[ia]=Le Layout a tegulas ha essite cambiate
 Comment[id]=Tata Letak Pengubinan telah diubah
 Comment[it]=Lo schema di affiancamento è stato modificato