> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.optery.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# About the free and open-source Optery Global Privacy Control (GPC) Extension

**What is the Optery Global Privacy Control (GPC) Extension?**

The Optery Global Privacy Control (GPC) Extension is a free and open-source web browser extension that allows you to send privacy preference signals to websites, indicating that you do not want your personal information to be sold or shared.

**How does the Optery GPC Extension work?**

When you install the Optery GPC Extension and turn on protection, it will automatically send a privacy preference signal to websites you visit, informing them that you do not want your personal information sold or shared.

**How to toggle on/off your GPC signal with the Optery GPC Extension**

* Install the Optery GPC Extension: You can install the Optery GPC Extension from the [Chrome Web Store](https://chromewebstore.google.com/detail/optery-global-privacy-con/nkiidnpgmddigajgebjhcdiklebfoomm).
* Look for the Optery GPC Extension icon: Once the extension is installed, you should see the Optery GPC Extension icon in your browser's toolbar.
* Click on the icon: Click on the Optery GPC Extension icon.
* Toggle the switch: The icon will show you whether your GPC signal is currently on or off. You can click on the switch to turn it on or off.

![Optery Global Privacy Control (GPC) Extension](https://storage.crisp.chat/users/helpdesk/website/a2694c90838a2000/sample-app_1q63si6.png)

**Browser Refresh Required**

To update your protection status, your browser must be refreshed. Make sure to save your changes in any open tabs before refreshing. 

**Additional Considerations**

* The Optery GPC Extension is only effective for websites that support the Global Privacy Control (GPC) standard.
* Even if you use the Optery GPC Extension, some websites may still collect your personal information. You can always review a website's privacy policy to learn more about how they collect and use your data.