Injects JavaScript code into a page.
To use this API you must have the permission for the page's URL, either explicitly as a host permission, or using the activeTab permission.
You can only inject code into pages whose URL can be expressed using a match pattern: meaning, its scheme must be one of "http", "https", "file", "ftp". This means that you can't inject code into any of the browser's built-in pages, such as about:debugging, about:addons, or the page that opens when you open a new empty tab.
The scripts you inject are called content scripts. Learn more about content scripts.
Syntax
chrome.tabs.executeScript( tabId, // optional integer details, // extensionTypes.InjectDetails function(result) {...} // optional function )
This API is also available as browser.tabs.executeScript()
in a version that returns a promise.
Parameters
tabId
Optionalinteger
. The ID of the tab in which to run the script. Defaults to the active tab of the current window.details
extensionTypes.InjectDetails
. Details of the script to run.Values of this type are objects. They contain the following properties:
allFrames
Optionalboolean
. Iftrue
, the code will be injected into all frames of the current page. If it isfalse
, code is only injected into the top frame. Defaults tofalse
.code
Optionalstring
. Code to inject, as a text string.file
Optionalstring
. Path to a file containing the code to inject. In Firefox, relative URLs are resolved relative to the current page URL. In Chrome, these URLs are resolved relative to the add-on's base URL. To work cross-browser, you can specify the path as an absolute URL, starting at the add-on's root, like this:"/path/to/script.js"
.frameId
Optionalinteger
. The frame where the code should be injected. Defaults to0
(the top-level frame).matchAboutBlank
Optionalboolean
. Iftrue
, the code will be injected into embedded "about:blank" and "about:srcdoc" frames if your add-on has access to their parent document. The code cannot be inserted in top-level about: frames. Defaults tofalse
.runAt
OptionalextensionTypes.RunAt
. The soonest that the code will be injected into the tab. Defaults to "document_idle".
callback
Optional Requires Gecko 47function
. Called after all the JavaScript has been executed. The function is passed the following arguments:-
result
Optionalarray
of
. The result of the script in every injected frame.any
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Chrome | Edge | Firefox | Firefox for Android | Opera | |
---|---|---|---|---|---|
Basic support | Yes | Yes | 43.0 | No | 33 |
Compatibility notes
Firefox
- 'matchAboutBlank' is not supported.
- 'allFrames' and 'frameId' both set is not supported.
- Before version 50, Firefox would pass a single result value into its callback rather than an array, unless 'allFrames' had been set.
Examples
This example executes a one-line code snippet in the currently active tab:
var makeItGreen = 'document.body.style.border = "5px solid green"'; chrome.tabs.executeScript({ code: makeItGreen });
This example executes a script from a file, packaged with the add-on, called "content-script.js". The script is executed in the currently active tab. The script is executed in subframes as well as the main document:
chrome.tabs.executeScript({ file: "/content-script.js", allFrames: true });
This example executes a script from a file, packaged with the add-on, called "content-script.js". The script is executed in the tab with an ID of 5:
chrome.tabs.executeScript( 5, { file: "/content-script.js" });
This example executes a script from a file, packaged with the add-on, called "content-script.js". The script is executed in the currently active tab. When the script has finished, we execute its result in the onExecuted
callback.
function onExecuted(result) { console.log(result); } chrome.tabs.executeScript({ file: "content-script.js", }, onExecuted);
Example add-ons
This API is based on Chromium's chrome.tabs
API. This documentation is derived from tabs.json
in the Chromium code.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
// Copyright 2015 The Chromium Authors. All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.