files/en-us/mozilla/add-ons/webextensions/api/browseraction/gettitle/index.md
Gets the browser action's title.
Just as you can set the title on a per-tab basis using {{WebExtAPIRef("browserAction.setTitle()")}}, so you can retrieve a tab-specific title by passing the tab's ID into this function.
This is an asynchronous function that returns a Promise.
let gettingTitle = browser.browserAction.getTitle(
details // object
)
details
tabId {{optional_inline}}
integer. Specify the tab to get the title from.windowId {{optional_inline}}
integer. Specify the window to get the title from.windowId and tabId are both supplied, the function fails and the promise it returns is rejected.windowId and tabId are both omitted, the global title is returned.A Promise that will be fulfilled with a string containing the browser action's title.
This code switches the title between "this" and "that" each time the user clicks the browser action:
function toggleTitle(title) {
if (title === "this") {
browser.browserAction.setTitle({ title: "that" });
} else {
browser.browserAction.setTitle({ title: "this" });
}
}
browser.browserAction.onClicked.addListener(() => {
let gettingTitle = browser.browserAction.getTitle({});
gettingTitle.then(toggleTitle);
});
{{WebExtExamples}}
{{Compat}}
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chrome.browserActionAPI. This documentation is derived frombrowser_action.jsonin the Chromium code.