Claude Chrome extension: what to use it for

The Claude Chrome extension, which Anthropic calls Claude in Chrome, lets Claude read, click and navigate websites in your browser alongside you. This guide is about what to use it for: what it is, how to set it up, the jobs Anthropic describes it doing, how to think about the jobs you do again and again, and how to use it safely. Every fact here is from Anthropic’s own pages, read on 28 October 2026.

In Anthropic’s words, from its help page Get started with Claude in Chrome: “Claude in Chrome is a browser extension that allows Claude to read, click, and navigate websites alongside you.” Its product page puts it as reading “the page you’re signed in to”, then clicking, typing and filling forms “while you decide what happens next.” The basics, from those two pages:

• Plans. Paid plans only: Pro, Max, Team and Enterprise. Anthropic’s August announcement had Pro still rolling out; the help page now lists it. On Enterprise it’s off by default, so an admin turns it on.
• Browser. Google Chrome. In the help page’s words, it “is not supported on other Chromium-based web browsers or mobile devices.”
• Where a task starts. Chrome’s side panel, Claude Cowork, and Anthropic’s other apps.

Setting it up, per the same help page:

1. Open Chrome and find Claude in Chrome on the Chrome Web Store.
2. Click Add to Chrome.
3. Sign in with your Claude account when it asks.
4. Pin it: click the puzzle piece icon, then the thumbtack next to Claude.
5. Grant the permissions it asks for, so Claude can work in your browser.

From then on you work with it in Chrome’s side panel, next to the page. Since August that panel is a Claude Cowork session, Anthropic announced: conversations are saved to your history, and a task started in a tab can be finished in the desktop, web or mobile apps.

The panel starts in “Automatically approve” mode, where Claude works through a task without stopping for permission at every step. Before a consequential action, a separate check reviews it against what you asked for, and Claude still asks before certain irreversible or costly actions, like a purchase or sharing personal data. You can switch back to the classic side panel from its three-dot menu. To use the extension from the Claude desktop app instead, the help page says to turn it on under Connectors in the app’s settings; it’s off by default in each conversation.

The jobs Anthropic describes start on the page in front of you, and need judgement as much as clicks. Sorted by kind:

Anthropic’s own worked example, in its August announcement, is a budget spreadsheet: pulling invoices from several vendor portals, collecting the amounts and dates, then picking the session up in the desktop app to add files from your computer.

What these have in common is that each one is a little different every time. A comparison of this week’s tabs, a form you fill in once, a site you’re finding your way around: you say what you want, watch it work, and step in when it needs you. That is the work an agent that reads the page and decides the next step is built for.

Some browser work isn’t different every time. The same export every Monday. The same five steps for each record in a list. There are two broad ways to hand that off, and they suit different jobs:

• Ask an AI browser agent each time. It reads the page as it is on that run and works out the steps from what you asked. That copes with a page that has changed, or a request that shifts a little each week. The trade-off is that each run is worked out fresh, so you watch it like a new task.
• Build the steps once and replay them. A tool of this kind turns the job into saved steps, and later runs follow those steps. The same job runs the same way, so the run you check closely is the first one. The trade-off is that when a site changes its layout, saved steps can need fixing.

Anthropic’s extension has its own ways to reuse work, per its help page: save a prompt that works as a shortcut and call it up by typing “/” in the chat, and set a browser task to recur daily, weekly, monthly or annually from the clock icon in the extension’s panel. In the classic side panel, the help page also describes recording your steps and saving them as a shortcut.

If what you want is an extension of your own, our guides to making a Chrome extension and to picking a Chrome extension builder cover that route. If the job is moving data between apps that already connect to each other, see our Zapier alternatives.

Anthropic is direct about the risk. Its help page says Claude in Chrome “is enhanced with our safety classifiers but is still risky”, and asks you to read Use Claude in Chrome safely first. The main danger it names is prompt injection: instructions hidden in a page that try to redirect what Claude does. Its advice, from that guide and the product page:

• Start with trusted sites, and be wary of unfamiliar pages and of content posted by people you don’t know.
• Review Claude’s proposed actions before you approve them, especially on a new site. Switching the panel to “Manually approve” lets you review every action.
• Skip banking, health records and anything with credentials you wouldn’t share. Anthropic strongly advises against using it on financial accounts, legal documents or medical information.
• Consider a separate browser profile that isn’t signed in to banking, health or government accounts.
• If Claude starts discussing unrelated topics or opening sites you didn’t expect, stop the task.

Some sites are blocked by default, and Anthropic’s two pages list them differently. Its troubleshooting page lists financial services, banking, investment platforms, cryptocurrency exchanges, adult content and pirated content as blocked by default; its safety guide lists adult and pirated content, and says Claude asks for permission before it opens financial sites. On Team and Enterprise plans, Anthropic’s help page says your admin can restrict which websites it can use, with allowlists and blocklists.

Tabless is a browser extension that builds what you ask for from the sites you allow; nothing is typed or submitted without your OK. It isn’t open yet. We’re building it for the busywork you repeat across the sites you already use: the same export, the same steps for each record.

It’s designed to build the steps once and replay them on your OK: a row button you click, or a batch whose rows and text you reviewed and confirmed, run one row at a time. Those replays follow saved steps, with no AI call at click time. It’s designed to read only the sites you allow, asking before each one, and you sign in to Tabless with a Wix account.

Google Chrome. Anthropic’s help page says Claude in Chrome is not supported on other Chromium-based browsers or on mobile devices.

Anthropic’s troubleshooting page suggests checking that you have an active paid plan (Pro, Max, Team or Enterprise), and on Team or Enterprise that your admin has turned it on; that the extension is enabled and has permission for the site; and that Chrome is the latest version. Refresh the page and start the task again, give a heavy page time to load, and turn off other extensions that might get in the way. If it won’t sign in, clear the cache and cookies for claude.ai and sign out and back in. If a site still won’t open for it, it may be in a category Anthropic blocks by default. For anything else, see Anthropic’s Claude in Chrome troubleshooting page.

Not yet. Tabless isn't open, and the jobs you repeat on the sites you already use are what we're building it for. Join the waitlist, and we'll let you know when you can try Tabless.