browser_close_tab
Close a specific tab by its ID. The tab is destroyed and its resources freed. If the closed tab was active, another tab becomes active. Cannot close the last remaining tab.
When to use browser_close_tab
Use browser_close_tab when you need to manage tabs, popups, and windows within a context. It is part of Owl Browser's Tab Management toolset and runs inside a self-hosted, source-level stealth engine, so every call inherits the same undetectable browser fingerprint as the rest of your automation — no separate anti-detect setup required.
Usage Example
Parameters
Required
context_idstringrequiredThe unique identifier of the browser context (e.g., 'ctx_000001')
tab_idstringrequiredThe unique identifier of the tab to close, obtained from browser_get_tabs. Cannot close the last remaining tab in a context
Response
Returns a JSON object with the operation result.
{
"success": true,
"result": <value>
}Frequently Asked Questions
What does browser_close_tab do?
Close a specific tab by its ID. The tab is destroyed and its resources freed. If the closed tab was active, another tab becomes active. Cannot close the last remaining tab. It belongs to Owl Browser's Tab Management category and is available through the REST API, the Python SDK (browser.close_tab()), the Node.js SDK, and the MCP server.
What parameters does browser_close_tab accept?
browser_close_tab accepts 2 required parameters (context_id, tab_id) and 0 optional parameters. All parameters are sent as JSON in a POST request to /api/execute/browser_close_tab.
Is browser_close_tab detectable by anti-bot systems like Cloudflare or DataDome?
No. browser_close_tab executes inside Owl Browser's Chromium engine, which applies fingerprint spoofing at the C++ source level rather than through JavaScript patches. Every tool call shares the same consistent, human-like fingerprint, so anti-bot systems such as Cloudflare, DataDome, and Akamai see an ordinary browser.
Related Tools
browser_set_popup_policyConfigure how popup windows are handled when JavaScript calls window.open() or links have target='_blank'. Options: 'allow' opens new window, 'block' prevents popup entirely, 'new_tab' opens in foreground tab, 'background' opens in background tab. Default behavior may vary by browser.
browser_get_tabsList all tabs/windows in the browser context. Returns tab ID, URL, title, and active status for each tab. Use to discover which tabs are open and get tab IDs for switching or closing.
browser_switch_tabSwitch focus to a specific tab by its ID. The tab becomes the active tab, and subsequent browser operations will interact with that tab's content. Other tabs continue running in the background.
browser_new_tabOpen a new tab in the browser context. Optionally navigate to a URL immediately. The new tab becomes active by default. Use for parallel browsing within a single context.
browser_get_active_tabGet information about the currently active (focused) tab. Returns tab ID, URL, and title. Browser operations target this tab unless you switch to another.
browser_get_tab_countGet the number of open tabs in the context. Quick way to check if multiple tabs exist without retrieving full tab details.