diff --git a/src/gameloop.cpp b/src/gameloop.cpp
index 3c82f48..4aec5dd 100644
--- a/src/gameloop.cpp
+++ b/src/gameloop.cpp
@@ -44,21 +44,27 @@ GameLoop::GameLoop(SDL_Surface *surf, GLuint *gameTextures, uint startLevel, uin
     nextLevelMenu.Add(new GenericMenuItem(_("Next level"), nextLevelMenuNextLevelHandler, this));
     nextLevelMenu.Add(new GenericMenuItem(_("End game"), pauseMenuEndGameHandler, this));
     nextLevelMenu.Add(new GenericMenuItem(_("View replay"), nextLevelMenuViewReplayHandler, this));
+#ifndef __EMSCRIPTEN__
     nextLevelMenu.Add(new GenericMenuItem(_("Export video"), nextLevelMenuExportVideoHandler, this));
+#endif
 
     nextLevelMenu.SetDimensions(30, 40, 40);
 
     gameOverMenu.Add(new GenericMenuItem(_("Back to main menu"), gameOverMenuEndGameHandler, this));
     gameOverMenu.Add(new GenericMenuItem(_("Restart game"), gameOverMenuRestartHandler, this));
     gameOverMenu.Add(new GenericMenuItem(_("View replay"), nextLevelMenuViewReplayHandler, this));
+#ifndef __EMSCRIPTEN__
     gameOverMenu.Add(new GenericMenuItem(_("Export video"), nextLevelMenuExportVideoHandler, this));
+#endif
 
     gameOverMenu.SetDimensions(30, 40, 40);
 
     lifeLostMenu.Add(new GenericMenuItem(_("Retry level"), lifeLostMenuRetryLevelHandler, this));
     lifeLostMenu.Add(new GenericMenuItem(_("End game"), lifeLostMenuEndGameHandler, this));
     lifeLostMenu.Add(new GenericMenuItem(_("View replay"), nextLevelMenuViewReplayHandler, this));
+#ifndef __EMSCRIPTEN__
     lifeLostMenu.Add(new GenericMenuItem(_("Export video"), nextLevelMenuExportVideoHandler, this));
+#endif
 
     lifeLostMenu.SetDimensions(30, 40, 40);
 
diff --git a/src/main.cpp b/src/main.cpp
index c6f1803..bc02ec9 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -48,6 +48,17 @@ bool resReset;
 bool audioHardwareInitialized;
 SDL_Rect **screenModes = NULL;
 GLuint pointer = 0;
+
+#ifdef __EMSCRIPTEN__
+#include <emscripten.h>
+/* fredygames.com browser build: the page calls this when the tab is hidden or closed, because the
+ * game only writes its settings when it quits (profiles it writes along the way) */
+extern "C" EMSCRIPTEN_KEEPALIVE void fredygames_save(void)
+{
+    settings.Save();
+    profile.Save();
+}
+#endif
 int pointerFrame = 0;
 double pointerRot = 0.0;
 
@@ -154,7 +165,12 @@ int main (int argc, char *argv[])
             if (!screenModes)
                 screenModes=SDL_ListModes(NULL, SDL_OPENGL | SDL_FULLSCREEN|SDL_HWSURFACE);
 
+#ifdef __EMSCRIPTEN__
+            /* fredygames.com browser build: one fixed size, which the page scales to the player */
+            string res = "1024x768";
+#else
             string res = settings.get("resolution", "640x480");
+#endif
 
             int vmx = atoi(res.c_str());
             int vmy = atoi(res.substr(res.find_first_of("x") + 1).c_str());
diff --git a/src/mainmenu.cpp b/src/mainmenu.cpp
index 2a73d6e..5878917 100644
--- a/src/mainmenu.cpp
+++ b/src/mainmenu.cpp
@@ -191,7 +191,11 @@ void MainMenu::CreateOptionsMenu()
         resolutions.push_back(tempRes[m]);
     }
 
+#ifdef __EMSCRIPTEN__
+    int y = 7; /* Cancel and Apply, two items earlier without Resolution and Fullscreen (below) */
+#else
     int y = 9;
+#endif
 
 #ifdef ENABLE_NLS
     y++;
@@ -208,8 +212,11 @@ void MainMenu::CreateOptionsMenu()
     optionsMenu.Add(new OptionMenuItem(_("Language"), languages, "language", &settings, descriptions));
 #endif
 
+#ifndef __EMSCRIPTEN__
+    /* fredygames.com browser build: the size is fixed and the page has its own fullscreen button */
     optionsMenu.Add(new OptionMenuItem(_("Resolution"), resolutions, "resolution", &settings));
     optionsMenu.Add(new BooleanMenuItem(_("Fullscreen"), &settings, "fullscreen"));
+#endif
     optionsMenu.Add(new BooleanMenuItem(_("Show FPS"), &settings, "showFps"));
     optionsMenu.Add(new BooleanMenuItem(_("Colour hints"), &settings, "colourHints"));
     optionsMenu.Add(new BooleanMenuItem(_("Disable speed-up"), &settings, "disableSpeedup"));
@@ -437,7 +444,11 @@ void optionsMenuCancelHandler(void *ptr)
 
     menuBackHandler (ptr);
 
+#ifdef __EMSCRIPTEN__
+    int y = 7; /* see MainMenu::CreateOptionsMenu */
+#else
     int y = 9;
+#endif
 
 #ifdef ENABLE_NLS
     y++;
diff --git a/src/mixer.cpp b/src/mixer.cpp
index b6af4d6..acb8c21 100644
--- a/src/mixer.cpp
+++ b/src/mixer.cpp
@@ -23,7 +23,7 @@
 
 namespace Scenes
 {
-Mixer::Mixer(MixerMode mmode = Realtime)
+Mixer::Mixer(MixerMode mmode)
         : mode(mmode), isPlaying(false)
 {
     mut_disposeList = SDL_CreateMutex();
diff --git a/src/ogvexport.h b/src/ogvexport.h
index 72c3573..45d18fc 100644
--- a/src/ogvexport.h
+++ b/src/ogvexport.h
@@ -24,6 +24,22 @@
 
 #include <cstdlib>
 #include <iostream>
+
+#ifdef __EMSCRIPTEN__
+/* fredygames.com browser build: no video export (it needs libtheora and writes an .ogv file the page
+ * could not offer anyway); the class stays so the replay code compiles, and does nothing */
+#include <string>
+using namespace std;
+namespace Scenes
+{
+class OgvExport
+{
+public:
+    OgvExport(string, int, int, int, int = 63, int = 0, int = 192000) {}
+    void FeedFrame(void *, void *, bool = false) {}
+};
+}
+#else
 #include <ogg/ogg.h>
 #include <theora/theoraenc.h>
 #include <vorbis/codec.h>
@@ -77,4 +93,5 @@ public:
 };
 }
 
+#endif //__EMSCRIPTEN__
 #endif //__OGVEXPORT_H__
diff --git a/src/scene.cpp b/src/scene.cpp
index 24cf781..8152aae 100644
--- a/src/scene.cpp
+++ b/src/scene.cpp
@@ -326,7 +326,12 @@ FrameEvents Scene::CreateFrameEvents()
         case SDL_KEYDOWN:
             ev.keyDown.push_back(event.key.keysym.sym);
             ev.empty = false;
+#ifdef __EMSCRIPTEN__
+            /* fredygames.com browser build: SDL2 has no keysym.unicode (see zazsdl12.c) */
+            ev.unicode.push_back(zaz_keysym_unicode(&event.key.keysym));
+#else
             ev.unicode.push_back(event.key.keysym.unicode);
+#endif
             break;
         case SDL_KEYUP:
             ev.keyUp.push_back(event.key.keysym.sym);