diff --git a/config.def.h b/config.def.h
index 2c3879d..7408dd1 100644
--- a/config.def.h
+++ b/config.def.h
@@ -42,8 +42,17 @@ static const Rule rules[] = {
 	 *	WM_CLASS(STRING) = instance, class
 	 *	WM_NAME(STRING) = title
 	 */
-	/* class    instance      title tags mask iscentered    isfloating   monitor */
-	{ NULL,	    "origin.exe", NULL, 0,        0,	        1,           -1 },
+	/* class          instance  title tags mask iscentered  isfloating  monitor */
+	{ "discord",      NULL,     NULL, 1 << 2,   0,          0,          1 },
+	{ "easyeffects",  NULL,     NULL, 1 << 9,   0,          0,          1 },
+	{ "Pavucontrol",  NULL,     NULL, 1 << 9,   0,          0,          1 },
+	{ "KeePassXC",    NULL,     NULL, 1 << 9,   0,          0,          0 },
+	{ "firefox",      NULL,     NULL, 1 << 1,   0,          0,          -1 },
+	{ "steam",        NULL,     NULL, 1 << 2,   0,          0,          0 },
+	{ "Lutris",       NULL,     NULL, 1 << 2,   0,          0,          0 },
+	{ "threema-web",  NULL,     NULL, 1 << 4,   0,          0,          1 },
+	{ "thunderbird",  NULL,     NULL, 1 << 4,   0,          0,          1 },
+	{ "Signal",       NULL,     NULL, 1 << 4,   0,          0,          1 },
 };
 
 /* layout(s) */