Tamper Data is a browser extension that enables users to inspect, intercept and edit HTTP/HTTPS requests and responses between a web browser and a web server without any additional installed software. Commonly developers use this Tamper Data extension as a web debugging tool to understand the webpage insights on how web applications works and in identifying security vulnerabilities, testing the behavior of websites or web applications when dealing with various types of data.

With this Tamper Data extension we can inspect and edit the sent and received data by website, including parameters, headers, and cookies before it reaches the server, which can be useful for testing to know how a website responds to different inputs or for analyzing and potentially exploiting security vulnerabilities.

Before going to use this extension it’s important to know that this Tamper Data is a valuable tool for developers and security professionals, it can also be misused for malicious purposes. Therefore, it should only be used responsibly and in situations where you have explicit permission to intercept and modify web traffic.

Tamper Data extension is primarily available for Mozilla Firefox browser and for other browsers there are few extensions available.

Before installing Tamper Data in Mozilla Firefox it is recommended to update Mozilla Firefox. To update Mozilla Firefox follow the below steps.
1. Open Mozilla Firefox.

2. Go to Setting>General>

3. Scroll down and click on Check for updates.
If there are any updates available, then Mozilla Firefox will download and install latest Mozilla Firefox on your PC.

After update of Mozilla Firefox you can continue installing Tamper Data extension on Mozilla Firefox.