diff --git a/biniax.c b/biniax.c
index 886b692..36bbbdf 100755
--- a/biniax.c
+++ b/biniax.c
@@ -201,7 +201,12 @@ int main( int argc, char *argv[] )
 		{
 			BNX_INT16 naction;
 
+#ifdef __EMSCRIPTEN__
+			/* fredygames.com browser build: biniax_common00.it is not distributed (see snd.c) */
+			sndPlayMusic( 1 + sysRand( cSndMaxMusic-2 ) );
+#else
 			sndPlayMusic( sysRand( cSndMaxMusic-1 ) );
+#endif
 			naction = gameSession( &Game );
 			switch ( naction )
 			{
diff --git a/desktop/snd.c b/desktop/snd.c
index 55b1c87..06fd544 100755
--- a/desktop/snd.c
+++ b/desktop/snd.c
@@ -69,7 +69,13 @@ BNX_BOOL sndInit()
 	_Snd.sounds[ 4 ] = Mix_LoadWAV( "data/sound/sfx4.wav" );
 	_Snd.sounds[ 5 ] = Mix_LoadWAV( "data/sound/sfx5.wav" );
 
+#ifdef __EMSCRIPTEN__
+	/* fredygames.com browser build: this module's own text credits the song "Spaceships" to another
+	 * musician, so it is left out and the in-game tracks are picked among 1 to 6 */
+	_Snd.music[ 0 ] = NULL;
+#else
 	_Snd.music[ 0 ] = Mix_LoadMUS( "data/music/biniax_common00.it" );
+#endif
 	_Snd.music[ 1 ] = Mix_LoadMUS( "data/music/biniax_common01.it" );
 	_Snd.music[ 2 ] = Mix_LoadMUS( "data/music/biniax_common02.it" );
 	_Snd.music[ 3 ] = Mix_LoadMUS( "data/music/biniax_common03.it" );
@@ -140,7 +146,12 @@ void sndUpdateMusic( BNX_GAME *game, BNX_BOOL change )
 		{
 			do
 			{
+#ifdef __EMSCRIPTEN__
+				/* fredygames.com browser build: biniax_common00.it is not distributed (see above) */
+				newMusic = 1 + sysRand( cSndMaxMusic-2 );
+#else
 				newMusic = sysRand( cSndMaxMusic-1 );
+#endif
 			} while( _Snd.curMusic == newMusic );
 			
 			_Snd.curMusic = newMusic;
diff --git a/desktop/sys.c b/desktop/sys.c
index 20528c0..8f84565 100755
--- a/desktop/sys.c
+++ b/desktop/sys.c
@@ -61,7 +61,15 @@ BNX_UINT32 sysGetTime()
 
 char* sysGetFullFileName( char *file )
 {
+#ifdef __EMSCRIPTEN__
+	/* fredygames.com browser build: the configuration, the hall of fame and the saved game live in
+	 * /home/web_user/biniax2, which the page keeps in the browser's IndexedDB */
+	static char path[ 256 ];
+	snprintf( path, sizeof( path ), "/home/web_user/biniax2/%s", file );
+	return path;
+#else
 	return (char *) file;
+#endif
 }
 
 void sysUpdate()