view = new QWebView(this);

void browser::load()
{
 QString name("http://" + adress->text());
 view->load(QUrl(name));
}

fileToolBar = addToolBar(tr("File"));
adress = new QLineEdit(fileToolBar);
fileToolBar->addWidget(adress);
backward = new QPushButton(tr("Backward"), fileToolBar);
fileToolBar->addWidget(backward);
forward = new QPushButton(tr("Forward"), fileToolBar);
fileToolBar->addWidget(forward);
reload = new QPushButton(tr("Reload"), fileToolBar);
fileToolBar->addWidget(reload);
stop = new QPushButton(tr("Stop"), fileToolBar);
fileToolBar->addWidget(stop);
...
connect(backward,SIGNAL(clicked()),view,SLOT(backward()));
connect(forward,SIGNAL(clicked()),view,SLOT(forward()));
connect(reload,SIGNAL(clicked()),view,SLOT(reload()));
connect(stop,SIGNAL(clicked()),view,SLOT(stop()));

progress = new QProgressBar(fileToolBar);
fileToolBar->addWidget(progress);
connect(view,SIGNAL(loadProgressChanged(int)),progress,SLOT(setValue(int)));