What is a Browser Extension

A browser extension¹ is a small software module for customizing a web browser. Browsers typically allow a variety of extensions, including user interface modifications, cookie management, ad blocking, and the custom scripting and styling of web pages.

Technologies used to create Browser Extension

It's created using familiar web-based technologies — HTML, CSS, and JavaScript. It can take advantage of the same web APIs as JavaScript on a web page, but an extension also has access to its own set of JavaScript APIs. This means that you can do a lot more in an extension² than you can with code in a web page.

Uses of Browser Extension

Some uses of using Browser Extensions are:

• Enhance or complement a website
• Let users show their personality
• Add or remove content from web pages
• Add tools and new browsing features
• Add development tools

References

1: Wiki. ↩

2: Browser Extensions. ↩