> ## 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

<Steps>
  <Step title="Log in to BrowserStack Live">
    **Log in** to your BrowserStack **[Live dashboard](https://live.browserstack.com/dashboard)**.
  </Step>

  <Step title="Open Extensions">
    Click the **Extensions** button next to the bookmark icon in the URL bar.

    <img src="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" alt="Extensions Button" width="1918" height="931" data-path="images/how-to-use-requestly-with-browserstack-live/extensions-button.webp" />
  </Step>

  <Step title="Enable Requestly Interceptor">
    The **Extensions window** opens with the **Requestly Interceptor extension already added** by default. Enable the extension using the toggle switch.

    <img src="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" alt="Enable Requestly Interceptor Extension" width="2940" height="1662" data-path="images/how-to-use-requestly-with-browserstack-live/toggle-extension.webp" />
  </Step>

  <Step title="Start Live Session">
    Start a Live session by selecting a supported **OS** and **browser combination**. Requestly Interceptor loads automatically inside the browser.

    <img src="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" alt="Requestly Interceptor in BrowserStack Live" width="2940" height="1662" data-path="images/how-to-use-requestly-with-browserstack-live/start-a-live-session.webp" />
  </Step>
</Steps>

### 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

<Steps>
  <Step title="Start Live Session">
    Start a Live session using **Chrome** or **Edge**.

    <img src="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" alt="Start Live Session in Chrome or Edge" width="2940" height="1662" data-path="images/how-to-use-requestly-with-browserstack-live/open-live-session.webp" />
  </Step>

  <Step title="Open Chrome Web Store">
    Open the **Chrome Web Store**.
  </Step>

  <Step title="Search for Requestly Interceptor">
    Search for **Requestly Interceptor**.

    <img src="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" alt="Search for Requestly Interceptor in Chrome Web Store" width="2940" height="1662" data-path="images/how-to-use-requestly-with-browserstack-live/search-for-requestly.webp" />
  </Step>

  <Step title="Install Extension">
    Click **Add to Chrome** / **Add to Edge**.

    <img src="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" alt="Install Requestly Interceptor Extension" width="2940" height="1662" data-path="images/how-to-use-requestly-with-browserstack-live/install-extension.webp" />
  </Step>

  <Step title="Extension Ready">
    The extension is now available in the browser.

    <img src="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" alt="Requestly Interceptor Extension Ready" width="2940" height="1662" data-path="images/how-to-use-requestly-with-browserstack-live/start-a-live-session.webp" />
  </Step>
</Steps>

### Firefox

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

<Steps>
  <Step title="Start Live Session">
    Start a Live session using **Firefox**.

    <img src="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" alt="Start Live Session in Firefox" width="2940" height="1662" data-path="images/how-to-use-requestly-with-browserstack-live/start-firefox-session.webp" />
  </Step>

  <Step title="Visit Download Page">
    Visit the Requestly Interceptor download page: **[https://requestly.in/downloads](https://requestly.in/downloads)**

    <img src="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" alt="Visit Requestly Interceptor Download Page" width="2940" height="1662" data-path="images/how-to-use-requestly-with-browserstack-live/download-firefox.webp" />
  </Step>

  <Step title="Download Extension">
    Download the **Requestly Interceptor Firefox (.xpi) extension**.

    <img src="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" alt="Download Requestly Interceptor Firefox Extension" width="2940" height="1662" data-path="images/how-to-use-requestly-with-browserstack-live/download-firefox-extension.webp" />
  </Step>

  <Step title="Approve Installation">
    When prompted, approve the installation.

    <img src="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" alt="Approve Requestly Interceptor Installation" width="2940" height="1662" data-path="images/how-to-use-requestly-with-browserstack-live/approve-installation.webp" />
  </Step>

  <Step title="Extension Ready">
    Requestly Interceptor is now available inside the browser.

    <img src="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" alt="Requestly Interceptor Extension Ready" width="2940" height="1662" data-path="images/how-to-use-requestly-with-browserstack-live/extension-installed.webp" />
  </Step>
</Steps>