diff --git a/po/POTFILES b/po/POTFILES
index af7b9032..a344e851 100644
--- a/po/POTFILES
+++ b/po/POTFILES
@@ -1,5 +1,6 @@
 contrib/audio/echo.c
 contrib/proxy/gen.c
+contrib/tcc/elinks_tcc.c
 src/bfu/button.c
 src/bfu/button.h
 src/bfu/checkbox.c
@@ -164,7 +165,7 @@ src/document/libdom/css.c
 src/document/libdom/css.h
 src/document/libdom/doc.c
 src/document/libdom/doc.h
-src/document/libdom/mapa.cpp
+src/document/libdom/mapa.c
 src/document/libdom/mapa.h
 src/document/libdom/renderer.c
 src/document/libdom/renderer.h
@@ -222,16 +223,18 @@ src/dom/test/html-mangle.c
 src/dom/test/sgml-parser.c
 src/ecmascript/css2xpath.cpp
 src/ecmascript/css2xpath.h
+src/ecmascript/ecmascript-c.c
 src/ecmascript/ecmascript-c.cpp
 src/ecmascript/ecmascript-c.h
+src/ecmascript/ecmascript.c
 src/ecmascript/ecmascript.cpp
 src/ecmascript/ecmascript.h
 src/ecmascript/libdom/dom.h
 src/ecmascript/libdom/parse.c
 src/ecmascript/libdom/parse.h
-src/ecmascript/localstorage-db.cpp
+src/ecmascript/localstorage-db.c
 src/ecmascript/localstorage-db.h
-src/ecmascript/mujs.cpp
+src/ecmascript/mujs.c
 src/ecmascript/mujs.h
 src/ecmascript/mujs/attr.c
 src/ecmascript/mujs/attr.h
@@ -241,10 +244,16 @@ src/ecmascript/mujs/collection.c
 src/ecmascript/mujs/collection.h
 src/ecmascript/mujs/console.c
 src/ecmascript/mujs/console.h
+src/ecmascript/mujs/css.c
+src/ecmascript/mujs/css.h
+src/ecmascript/mujs/customevent.c
+src/ecmascript/mujs/customevent.h
 src/ecmascript/mujs/document.c
 src/ecmascript/mujs/document.h
 src/ecmascript/mujs/element.c
 src/ecmascript/mujs/element.h
+src/ecmascript/mujs/event.c
+src/ecmascript/mujs/event.h
 src/ecmascript/mujs/form.c
 src/ecmascript/mujs/form.h
 src/ecmascript/mujs/forms.c
@@ -261,7 +270,7 @@ src/ecmascript/mujs/localstorage.c
 src/ecmascript/mujs/localstorage.h
 src/ecmascript/mujs/location.c
 src/ecmascript/mujs/location.h
-src/ecmascript/mujs/mapa.cpp
+src/ecmascript/mujs/mapa.c
 src/ecmascript/mujs/mapa.h
 src/ecmascript/mujs/message.c
 src/ecmascript/mujs/message.h
@@ -279,7 +288,7 @@ src/ecmascript/mujs/window.c
 src/ecmascript/mujs/window.h
 src/ecmascript/mujs/xhr.c
 src/ecmascript/mujs/xhr.h
-src/ecmascript/quickjs.cpp
+src/ecmascript/quickjs.c
 src/ecmascript/quickjs.h
 src/ecmascript/quickjs/attr.c
 src/ecmascript/quickjs/attr.h
@@ -289,10 +298,16 @@ src/ecmascript/quickjs/collection.c
 src/ecmascript/quickjs/collection.h
 src/ecmascript/quickjs/console.c
 src/ecmascript/quickjs/console.h
+src/ecmascript/quickjs/css.c
+src/ecmascript/quickjs/css.h
+src/ecmascript/quickjs/customevent.c
+src/ecmascript/quickjs/customevent.h
 src/ecmascript/quickjs/document.c
 src/ecmascript/quickjs/document.h
 src/ecmascript/quickjs/element.c
 src/ecmascript/quickjs/element.h
+src/ecmascript/quickjs/event.c
+src/ecmascript/quickjs/event.h
 src/ecmascript/quickjs/form.c
 src/ecmascript/quickjs/form.h
 src/ecmascript/quickjs/forms.c
@@ -311,7 +326,7 @@ src/ecmascript/quickjs/localstorage.c
 src/ecmascript/quickjs/localstorage.h
 src/ecmascript/quickjs/location.c
 src/ecmascript/quickjs/location.h
-src/ecmascript/quickjs/mapa.cpp
+src/ecmascript/quickjs/mapa.c
 src/ecmascript/quickjs/mapa.h
 src/ecmascript/quickjs/message.c
 src/ecmascript/quickjs/message.h
@@ -341,10 +356,16 @@ src/ecmascript/spidermonkey/collection.cpp
 src/ecmascript/spidermonkey/collection.h
 src/ecmascript/spidermonkey/console.cpp
 src/ecmascript/spidermonkey/console.h
+src/ecmascript/spidermonkey/css.cpp
+src/ecmascript/spidermonkey/css.h
+src/ecmascript/spidermonkey/customevent.cpp
+src/ecmascript/spidermonkey/customevent.h
 src/ecmascript/spidermonkey/document.cpp
 src/ecmascript/spidermonkey/document.h
 src/ecmascript/spidermonkey/element.cpp
 src/ecmascript/spidermonkey/element.h
+src/ecmascript/spidermonkey/event.cpp
+src/ecmascript/spidermonkey/event.h
 src/ecmascript/spidermonkey/form.cpp
 src/ecmascript/spidermonkey/form.h
 src/ecmascript/spidermonkey/forms.cpp
@@ -375,12 +396,14 @@ src/ecmascript/spidermonkey/style.cpp
 src/ecmascript/spidermonkey/style.h
 src/ecmascript/spidermonkey/unibar.cpp
 src/ecmascript/spidermonkey/unibar.h
+src/ecmascript/spidermonkey/url.cpp
+src/ecmascript/spidermonkey/url.h
 src/ecmascript/spidermonkey/util.h
 src/ecmascript/spidermonkey/window.cpp
 src/ecmascript/spidermonkey/window.h
 src/ecmascript/spidermonkey/xhr.cpp
 src/ecmascript/spidermonkey/xhr.h
-src/ecmascript/timer.cpp
+src/ecmascript/timer.c
 src/ecmascript/timer.h
 src/elinks.h
 src/encoding/brotli.c