The application works with any browser, and has a safe copy feature that comes in handy if you want to revert the last changes you've made.
Adding websites to the list of blocked sites is as simple as writing the URL and clicking on the Add button. Once you do this, you just have to click once to lock and to unlock the sites you choose.
Another feature in the app lets you block access to Internet as a whole, in case you don't want your kids to use it in any way.
The best thing about this program, though, is that it is a standalone application, so you don't have to install it, you just have to open it from a USB drive whenever and wherever you want.
Weblocker is a very simple and practical tool. If you are a parent who worries about the kids accessing the Internet, it can save you many headaches.