lets try qutebrowser

config.def.h

@@ -70,7 +70,7 @@ static const Layout layouts[] = {
 static char dmenumon[2] = "0"; /* component of dmenucmd, manipulated in spawn() */
 static const char *dmenucmd[] = { "dmenu_run", "-c", "-l", "20", NULL };
 static const char *termcmd[]  = { "st", NULL };
-static const char *browsercmd[] = { "firefox", NULL };
+static const char *browsercmd[] = { "qutebrowser", NULL };
 static const char *filecmd[] = {"st", "-e", "vifmrun", NULL };
 static const char *javaidecmd[] = {"intellij-idea-ultimate-edition", NULL };
 static const char *mailcmd[] = {"thunderbird", NULL };