User JavaScript and CSS vs Viber
A side-by-side look at User JavaScript and CSS and Viber. For an in-depth review of either product, follow the links below.
User JavaScript and CSS
Web Browsers
User JavaScript and CSS allows you to customize webpages by injecting your own JavaScript and CSS code. It gives you fine-grained control to modify page behavior and styling.
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Viber
Social & Communications
Viber is a free messaging and calling app for smartphones. It uses your phone number to connect you with people in your contacts and allows free calls, texts, photos and video messages over WiFi.
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