> ## Documentation Index
> Fetch the complete documentation index at: https://interceptor-docs.requestly.com/llms.txt
> Use this file to discover all available pages before exploring further.

# How to Use Requestly Interceptor Extension in BrowserStack Live

BrowserStack Live allows you to test websites on real browsers and operating systems. With **Requestly Interceptor**, you can modify network requests, mock APIs, redirect URLs, inject scripts, and debug your application directly inside your live sessions.

You can use Requestly Interceptor in BrowserStack Live in two ways:

1. **Preload the Requestly Interceptor extension** (recommended)
2. **Manually install the extension** inside the browser session

## Preloading the Requestly Interceptor Extension (Recommended)

BrowserStack allows certain extensions to be preloaded so they are automatically available in every new session. This is the fastest and most reliable way to use Requestly Interceptor in Live.

### Steps to Preload Requestly Interceptor

**1. Log in to BrowserStack Live**

**Log in** to your BrowserStack **[Live dashboard](https://live.browserstack.com/dashboard)**.

**2. Open Extensions**

Click the **Extensions** button next to the bookmark icon in the URL bar.

![Extensions Button](https://mintcdn.com/interceptor/XXK0nJZwW3sklrNQ/images/how-to-use-requestly-with-browserstack-live/extensions-button.webp?fit=max\&auto=format\&n=XXK0nJZwW3sklrNQ\&q=85\&s=195cc841cf44f415513258b1bbc0fd91)

**3. Enable Requestly Interceptor**

The **Extensions window** opens with the **Requestly Interceptor extension already added** by default. Enable the extension using the toggle switch.

![Enable Requestly Interceptor Extension](https://mintcdn.com/interceptor/XXK0nJZwW3sklrNQ/images/how-to-use-requestly-with-browserstack-live/toggle-extension.webp?fit=max\&auto=format\&n=XXK0nJZwW3sklrNQ\&q=85\&s=b06c06a7341b2644375955cc4dd8aea2)

**4. Start Live Session**

Start a Live session by selecting a supported **OS** and **browser combination**. Requestly Interceptor loads automatically inside the browser.

![Requestly Interceptor in BrowserStack Live](https://mintcdn.com/interceptor/XXK0nJZwW3sklrNQ/images/how-to-use-requestly-with-browserstack-live/start-a-live-session.webp?fit=max\&auto=format\&n=XXK0nJZwW3sklrNQ\&q=85\&s=172aa6e5d244e3b3f051671e405ebc7f)

### Supported OS & Browsers for Preloading

Preloading is supported only in **desktop sessions**.

| Operating System | Supported Browsers |
| - | - |
| **Windows** | Chrome (up to version 142), Edge |
| **macOS** | Chrome (up to version 142), Edge |

> **Note:** Firefox does not support preloading extensions. You can still install Requestly Interceptor manually during your session.

## Manually Installing Requestly Interceptor in BrowserStack Live

If your browser or session does not support preloading, you can manually install Requestly Interceptor inside the Live session.

### Chrome / Edge

**1. Start Live Session**

Start a Live session using **Chrome** or **Edge**.

![Start Live Session in Chrome or Edge](https://mintcdn.com/interceptor/XXK0nJZwW3sklrNQ/images/how-to-use-requestly-with-browserstack-live/open-live-session.webp?fit=max\&auto=format\&n=XXK0nJZwW3sklrNQ\&q=85\&s=94d97d274d8a82efc3b0ec0d588bcee7)

**2. Open Chrome Web Store**

Open the **Chrome Web Store**.

**3. Search for Requestly Interceptor**

Search for **Requestly Interceptor**.

![Search for Requestly Interceptor in Chrome Web Store](https://mintcdn.com/interceptor/XXK0nJZwW3sklrNQ/images/how-to-use-requestly-with-browserstack-live/search-for-requestly.webp?fit=max\&auto=format\&n=XXK0nJZwW3sklrNQ\&q=85\&s=c8830aaf216e396a31b561d4271d6f0a)

**4. Install Extension**

Click **Add to Chrome** / **Add to Edge**.

![Install Requestly Interceptor Extension](https://mintcdn.com/interceptor/XXK0nJZwW3sklrNQ/images/how-to-use-requestly-with-browserstack-live/install-extension.webp?fit=max\&auto=format\&n=XXK0nJZwW3sklrNQ\&q=85\&s=fe327ce95b3c9d403f720f9a29780ccd)

**5. Extension Ready**

The extension is now available in the browser.

![Requestly Interceptor Extension Ready](https://mintcdn.com/interceptor/XXK0nJZwW3sklrNQ/images/how-to-use-requestly-with-browserstack-live/start-a-live-session.webp?fit=max\&auto=format\&n=XXK0nJZwW3sklrNQ\&q=85\&s=172aa6e5d244e3b3f051671e405ebc7f)

### Firefox

For Firefox users, Requestly Interceptor can be installed through the Requestly Interceptor download page.

**1. Start Live Session**

Start a Live session using **Firefox**.

![Start Live Session in Firefox](https://mintcdn.com/interceptor/XXK0nJZwW3sklrNQ/images/how-to-use-requestly-with-browserstack-live/start-firefox-session.webp?fit=max\&auto=format\&n=XXK0nJZwW3sklrNQ\&q=85\&s=eafe791981933f606096889c5383cd7d)

**2. Visit Download Page**

Visit the Requestly Interceptor download page: **[https://requestly.in/downloads](https://requestly.in/downloads)**

![Visit Requestly Interceptor Download Page](https://mintcdn.com/interceptor/XXK0nJZwW3sklrNQ/images/how-to-use-requestly-with-browserstack-live/download-firefox.webp?fit=max\&auto=format\&n=XXK0nJZwW3sklrNQ\&q=85\&s=2bf4fa35aacf97139cfc9f2f37236de8)

**3. Download Extension**

Download the **Requestly Interceptor Firefox (.xpi) extension**.

![Download Requestly Interceptor Firefox Extension](https://mintcdn.com/interceptor/XXK0nJZwW3sklrNQ/images/how-to-use-requestly-with-browserstack-live/download-firefox-extension.webp?fit=max\&auto=format\&n=XXK0nJZwW3sklrNQ\&q=85\&s=4cccef677020bfa43c489151193475da)

**4. Approve Installation**

When prompted, approve the installation.

![Approve Requestly Interceptor Installation](https://mintcdn.com/interceptor/XXK0nJZwW3sklrNQ/images/how-to-use-requestly-with-browserstack-live/approve-installation.webp?fit=max\&auto=format\&n=XXK0nJZwW3sklrNQ\&q=85\&s=2cfd0b65b58d487da42df90749d64888)

**5. Extension Ready**

Requestly Interceptor is now available inside the browser.

![Requestly Interceptor Extension Ready](https://mintcdn.com/interceptor/XXK0nJZwW3sklrNQ/images/how-to-use-requestly-with-browserstack-live/extension-installed.webp?fit=max\&auto=format\&n=XXK0nJZwW3sklrNQ\&q=85\&s=824256eb54ba746b8e7a637e17859af0)


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.