Slim Browser is a powerful and compact tabbed multiple-site browser with full unicode support. It incorporates a large collection of powerful features like built-in popup killer, skinned window frame, form filler, site group, quick-search, auto login, hidden sites, built-in commands and scripting, online translation, script error suppression, blacklist / whitelist filtering, URL Alias.
Slim Browser let you open several sites at once with the support of site groups. It

Avant Browser is a fast, stable, user-friendly, versatile the top rated multi-window browser in Internet, which adds a batch of features and functionalities to Internet Explorer. Avant Browser is a multi-window browser which features with many functions such as Pop-up Stopper and Flash Ads Filter, Built-in Google Searching, Built-in RSS/ATOM Reader, Safe Recovery, Integrated Cleaner and Advanced

Roboform is the top-rated Password Manager and Web Form Filler that completely automates password entering and form filling. RoboForm is a push-button web form filler with some serious Artificial Intelligence (AI) inside. It allows you to define your personal profile or "usual" responses to a web form. This information is then saved, and when you need to fill a form, just click "Fill Forms" button, and form is filled out. Works as an add-on to Microsoft Internet Explorer, Mozilla, Firefox or Netscape web browsers.