extensionTypes.InjectDetails

This object is used by:

• tabs.executeScript() to describe a piece of JavaScript to inject into a tab.
• tabs.insertCSS() to describe a piece of JavaScript to inject into a tab.
• tabs.removeCSS() to describe a piece of JavaScript to remove from a tab.

The code can be in a separate file, specified using file, or in a string, specified using code. One (and only one) of code or file must be set.

Type

Values of this type are objects. They contain the following properties:

allFramesOptional

boolean. If true, the code will be injected into all frames of the current page. If it is false, code is only injected into the top frame. Defaults to false.

codeOptional

string. Code to inject, as a text string.

fileOptional

string. 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".

frameIdOptional

integer. The frame where the code should be injected. Defaults to 0 (the top-level frame).

matchAboutBlankOptional

boolean. If true, 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 to false.

runAtOptional

extensionTypes.RunAt. The soonest that the code will be injected into the tab. Defaults to "document_idle".

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.

Compatibility notes

Firefox

• 'matchAboutBlank' is not supported.

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