> For the complete documentation index, see [llms.txt](https://docs.incogniton.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.incogniton.com/extra-features/extension-manager/custom-extensions.md).

# Custom extensions

{% embed url="<https://www.youtube.com/watch?v=RDQ4ZBdg3j0>" %}

Incogniton lets you install custom Chrome-compatible extensions into your browser profiles. This allows you to optimize each profile for your specific workflow, without sacrificing fingerprint protection or anonymity - whether you’re running automation tools, managing ads, blocking trackers, or handling multiple accounts.

In this guide, we’ll walk you through the steps to upload a custom extension and assign it to profiles. Before you begin, ensure the custom extension file you want to upload is saved on your computer and in **.crx format**.

### How to upload and set up a custom extension in Incogniton <a href="#id-0-toc-title" id="id-0-toc-title"></a>

{% stepper %}
{% step %}

#### **Upload and create the custom extension**

* Navigate to **Browsers > Extensions**
* Click **Add extension** and go to the custom tab in the pop-up dialog
* Click **Select .crx file**
* Select your .crx file from your computer and follow the prompts to add it
* Choose a name and description (optional) and click on **Add**

<figure><img src="/files/zYagqsxwESi9FkOC1MyF" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}

#### Assign custom extension to a browser profile

* Create a new profile or edit an existing one
* Go to **Advanced > Extensions & Cookies**
* Go to the custom tab and select the extension under **Custom library**
* Click on **Save**

<figure><img src="/files/pfscFFFQQ4CpvQbh8bzO" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}

#### **Add custom extension to multiple profiles (bulk)**

* Select the profiles you want to add the extension to
* Navigate to the toolbar below, go to more actions and click **Browser Management > Add Extensions**
* Select the custom extension and click on **Save**

<figure><img src="/files/IDXesWMlo4gEx1aYXj67" alt=""><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}

{% hint style="info" %}
If you have any questions about the process or are running into issues assigning extensions, reach out to [Incogniton Support](https://incogniton.com/contact/) for assistance.
{% endhint %}