Claude Firefox Control connectorWhat Claude can do in your Firefox browser with Firefox Control.
The Claude Firefox Control connector exposes 8 tools: 4 read and 4 write. Claude reads your open tabs, your recent history and a page's text, then opens, closes, groups or reorders tabs. It is a desktop extension paired with a Firefox add-on. Here is what it allows, and the guardrails around it.
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What the Claude Firefox Control connector changes
Thirty tabs open, an article from last week you cannot find, a long page you would rather not read in full: this connector lets Claude reach into your Firefox. It sees what is open, searches your history, reads a page's text once you have allowed that site, and tidies things up when you ask.
Clear the clutter before you log off. Ask Claude to close everything unrelated to work. It lists tabs with get-list-of-open-tabs, then shuts the ones you no longer need through close-browser-tabs.
Find that article again. You remember a piece about a hiking trail in New Zealand, not its title. Claude digs through get-recent-browser-history and reopens it with open-browser-tab.
Summarize without copy-pasting. On a page that is already open, Claude pulls the text and links using get-tab-web-content, provided you granted consent for that domain in Firefox.
What it will not do: fill in a form, click inside a page or run a script. The author built it that way on purpose. Nothing runs on its own either, since Claude only acts while it answers you. Other platforms covered on the site sit on the Integrations hub. The same goes for screenshots: the author's code mentions one, but it is not on the connector's sheet.
Five words before you connect
The Claude vocabulary around this connector, in a minute.
- Connector
- The link you set up once between Claude and a service you already use, so Claude can work with it while it answers you.
- Tool
- One named capability the connector opens to Claude. Claude picks which ones to call on its own, and the directory sheet lists them.
- Authorization
- Firefox's own sign-in screen, where you hand Claude the access it will use afterwards. Granted once per person, and revocable.
- Approval
- The confirmation Claude waits for before an action that changes an account, shown right in the conversation when it matters.
- MCP
- The shared standard connectors are built on. It is what lets an assistant like Claude talk to an outside service such as Firefox.
Connect Firefox Control to Claude in three steps
- 01
Find the extension
Firefox Control is a desktop extension, so it plugs into Claude Desktop. In settings, go to Customize, then Connectors, and look for it. On a Team or Enterprise workspace, an Owner or Primary Owner enables it first.
- 02
Pair it with the Firefox add-on
Click Connect. The directory sheet asks you to install the Firefox add-on first, then copy the secret key shown in the add-on's settings and paste it into the Claude extension's configuration.
- 03
Keep control of access
On the Firefox side, the author requires explicit consent per domain before any page is read, and keeps an audit log of tool calls. The author also describes a local-only link between the extension and the add-on, secured by a shared secret.
The 8 tools, read and write
Firefox Control gives Claude 8 tools: 4 that read your account, 4 that change something in it.
Eight tools, each described by the author in the extension's public source code. Names stay exactly as Claude shows them.
- 4 read
- 4 write
What Claude looks at (4)
4 toolsFour tools that inspect your browser without moving anything.
get-list-of-open-tabs
Returns your open tabs, page by page when there are lots of them. It is usually the first call before sorting, grouping or reading anything.
get-recent-browser-history
Pulls your recent browsing history, either all of it or narrowed by a search term. That lets Claude track down a page you visited without you remembering its exact address.
get-tab-web-content
Fetches the full text of an open page along with its list of links.
find-highlight-in-browser-tab
Searches for a phrase inside a tab and highlights it so you see it on screen straight away. The tool leaves the page's content as it was.
What Claude changes (4)
4 toolsFour tools that act on your tabs. No source describes their confirmation, so the general rule below applies.
open-browser-tab
Approval: see the ruleOpens a new page in your Firefox at an address Claude picked or you supplied. It is the basic move behind any "open this site for me" request.
close-browser-tabs
Approval: see the ruleCloses one or more tabs identified by their IDs.
reorder-browser-tabs
Approval: see the ruleChanges the order of tabs in your window to a sequence Claude proposes. Nothing gets opened or closed; only each page's position moves.
group-browser-tabs
Approval: see the ruleCreates a tab group in Firefox and moves the chosen pages into it. According to the author's feature list, the group gets a name and a color.
What Claude asks before it acts
By default, Claude stops and asks for your go-ahead before each action it takes on an account for you.
For the four tools that open, close, reorder or group tabs, no source describes a dedicated confirmation, so the default rule covers them. On Team and Enterprise, owners decide whether members can let certain actions through without being asked again, and they can restrict a connector for the whole organization. There is an extra layer on the Firefox side: the author requires your consent per domain before any page gets read.
Which plans include it
No official source publishes plan availability connector by connector, and none of the 819 directory sheets shows it. It is a real gap in the catalog.
What is published is the general rule: desktop extensions install on Claude Desktop. On Team and Enterprise, an Owner or Primary Owner turns the connector on for the organization before members connect. For this one's current status, check its sheet in the official directory. Worth knowing: only its author documents this connector, and no Claude help article covers it.
Where this connector stops
A connector is not an automation. Claude calls these tools while it answers you, and nothing fires when you open a new tab.
The author describes the extension as experimental, to be used at your own risk while you keep an eye on tool calls. The directory badge is not a security audit, and Anthropic notes on every sheet that it does not choose a publisher's tools or vouch for how they behave. Here the publisher is an independent developer, not Mozilla. The author's code also holds a screenshot tool that is not on the connector's sheet.
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