How to avoid GULP opening a new tab?

That's my question, every time I go to the console and try to restart the server by doing gulp, a new tab is open in the browser, so I have to close the one I have open and start working on the new one.

And another question regarding the same:

sometimes there is an error on the code styling and the tab is open anyways once you do gulp, but you can not start working on it until you fix the error on the code style, then you go and do gulp and the new tab comes up.

here is my gulpfile.js

var gulp = require('gulp');

var paths = {
  sass: ['scss/**/*.scss'],
  js: ['www/js/*.js', 'www/js/**/*.js', '!www/js/lib.min.js', '!www/js/code.min.js']
};

// Dev task
gulp.task('dev', ['sass', 'lint', 'compress-lib', 'compress-js', 'run-ionic'], function() { });

// Build task
gulp.task('default', ['dev', 'lint', 'sass', 'compress-lib', 'compress-js', 'watch']);

//Ionic Serve Task
gulp.task('run-ionic',shell.task([
  'ionic serve'
]));

gulp.task('compress-lib', function() {
  gulp.src([
    './www/lib/ionic/js/ionic.bundle.min.js'
  ])
    .pipe(concat('lib.min.js'))
    .pipe(gulp.dest('./www/js'))
    .pipe(livereload());
});

gulp.task('compress-js', function() {
  gulp.src([
    './www/js/app.js'
  ])
    .pipe(ngAnnotate())
    .pipe(concat('code.min.js'))
    .pipe(gulp.dest('./www/js'))
    .pipe(livereload());
});

// JSHint task
gulp.task('lint', function() {
  gulp.src(paths.js)
      .pipe(jscs())
      .pipe(jshint())
      .pipe(jshint.reporter('default'))
      .pipe(livereload());
});

gulp.task('sass', function(done) {
  gulp.src('./scss/ionic.app.scss')
    .pipe(sass({onError: function(e) { console.log(e); } }))
    .pipe(autoprefixer('last 2 versions', 'Chrome', 'ios_saf','Android'))
    .pipe(gulp.dest('./www/css/'))
    .pipe(minifyCss({
      keepSpecialComments: 0
    }))
    .pipe(rename({ extname: '.min.css' }))
    .pipe(gulp.dest('./www/css/'))
    .on('end', done)
    .pipe(livereload());
});

gulp.task('watch', function() {
  gulp.watch(paths.sass, ['sass']);
  gulp.watch(paths.js, ['lint', 'compress-lib', 'compress-js']);
  livereload.listen(9000);
});

gulp.task('install', ['git-check'], function() {
  return bower.commands.install()
    .on('log', function(data) {
      gutil.log('bower', gutil.colors.cyan(data.id), data.message);
    });
});