Install the ChatGPT extension for your browser

The ChatGPT extension lets the assistant act in your browser, for example on tabs you have open. It installs in a few clicks from the official download page. This guide covers installation on a computer.

Open the official download page

Go to https://chatgpt.com/download. Find the button labeled “Download Chrome extension.” It takes you to the extension’s page in the Chrome Web Store, Chrome’s extension store.

Add the extension to Chrome

On the “ChatGPT” page in the Chrome Web Store, click the button that adds the extension to Chrome, then confirm the installation. The button label may vary depending on your browser’s language.

Be careful, it’s easy to get confused: there is another, separate extension that lets you use ChatGPT as Chrome’s default search engine. It is not the one that controls the browser. Check the name and description before you install.

Check the page before you install

Before you confirm, read the extension’s page. Check that the publisher listed is OpenAI, and review the system requirements shown on the page. Be wary of extensions with similar names published by other companies.

Allow the extension at the right time

The extension doesn’t ask for everything at once. In a conversation on the ChatGPT site, mention the browser (for example with “@Chrome”), or choose a tab using the “+” menu. When a permission request appears, read it before you accept.

According to OpenAI’s help article, this mode is mainly useful when a task needs your Chrome profile, your signed-in sessions, your open tabs or your extensions. Only grant access if you need it.

Review permissions site by site

You can review or remove the permissions granted for each site. According to OpenAI’s help article, this is done in ChatGPT under “Settings > Chrome extension.” If the label has changed, look for the section dedicated to the extension in the settings.

Use it on another browser

According to OpenAI’s release notes dated August 31, 2026, the extension also supports Microsoft Edge, Brave, Opera and Vivaldi. On these browsers, start from the official download page, then follow the instructions from your browser’s extension store.

The side panel (“side chat”) varies by browser. On Opera, the release notes say it is not available, but tab mentions and browser control do work.

OpenAI’s Atlas browser is being phased out. According to an OpenAI note dated July 9, 2026, it is recommended to use the Chrome extension or the sidebar wherever they are available.

And now?

Start with a simple request about a tab you already have open:

• “Summarize the page I have open in this tab in five points.”
• “Among my open tabs, find the one about traveling to Lisbon and tell me what it offers.”

If ChatGPT asks for permission, read the request before you answer.