HTTP/2 200
content-type: text/html
x-guploader-uploadid: AAwnv3JcsHLE4nIRP70wtZuzE58_EVMI2cyOuuzjzeUvaPVvLpXk-JNZSLYqddvk6jeeEu6_
cache-control: public, max-age=3600
expires: Thu, 09 Oct 2025 18:24:33 GMT
last-modified: Thu, 09 Oct 2025 01:04:24 GMT
etag: W/"2aac4067e5ed6354de6d4570b942c315"
x-goog-generation: 1759971864444230
x-goog-metageneration: 1
x-goog-stored-content-encoding: identity
x-goog-stored-content-length: 152297
x-goog-meta-goog-reserved-file-mtime: 1759970668
x-goog-hash: crc32c=5h/rUQ==, md5=KqxAZ+XtY1TebUVwuULDFQ==
x-goog-storage-class: STANDARD
accept-ranges: none
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
alt-svc: clear
referrer-policy: strict-origin-when-cross-origin
x-content-type-options: nosniff
strict-transport-security: max-age=63072000
content-security-policy: default-src 'self'; script-src 'report-sample' 'self' 'wasm-unsafe-eval' https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/js assets.codepen.io production-assets.codepen.io https://js.stripe.com 'sha256-XNBp89FG76amD8BqrJzyflxOF9PaWPqPqvJfKZPCv7M=' 'sha256-YCNoU9DNiinACbd8n6UPyB/8vj0kXvhkOni9/06SuYw=' 'sha256-PZjP7OR6mBEtnvXIZfCZ5PuOlxoDF1LDZL8aj8c42rw='; script-src-elem 'report-sample' 'self' 'wasm-unsafe-eval' https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/js assets.codepen.io production-assets.codepen.io https://js.stripe.com 'sha256-XNBp89FG76amD8BqrJzyflxOF9PaWPqPqvJfKZPCv7M=' 'sha256-YCNoU9DNiinACbd8n6UPyB/8vj0kXvhkOni9/06SuYw=' 'sha256-PZjP7OR6mBEtnvXIZfCZ5PuOlxoDF1LDZL8aj8c42rw='; style-src 'report-sample' 'self' 'unsafe-inline'; object-src 'none'; base-uri 'self'; connect-src 'self' developer.allizom.org bcd.developer.allizom.org bcd.developer.mozilla.org updates.developer.allizom.org updates.developer.mozilla.org https://*.google-analytics.com https://*.analytics.google.com https://*.googletagmanager.com https://incoming.telemetry.mozilla.org https://observatory-api.mdn.allizom.net https://observatory-api.mdn.mozilla.net https://api.github.com/search/issues stats.g.doubleclick.net https://api.stripe.com; font-src 'self'; frame-src 'self' interactive-examples.mdn.mozilla.net interactive-examples.mdn.allizom.net mdn.github.io live-samples.mdn.mozilla.net live-samples.mdn.allizom.net *.mdnplay.dev *.mdnyalp.dev *.play.test.mdn.allizom.net https://v2.scrimba.com https://scrimba.com jsfiddle.net www.youtube-nocookie.com codepen.io survey.alchemer.com https://js.stripe.com; img-src 'self' data: *.githubusercontent.com *.googleusercontent.com *.gravatar.com mozillausercontent.com firefoxusercontent.com profile.stage.mozaws.net profile.accounts.firefox.com developer.mozilla.org mdn.dev interactive-examples.mdn.mozilla.net interactive-examples.mdn.allizom.net wikipedia.org upload.wikimedia.org https://mdn.github.io/shared-assets/ https://mdn.dev/ https://*.google-analytics.com https://*.googletagmanager.com www.gstatic.com; manifest-src 'self'; media-src 'self' archive.org videos.cdn.mozilla.net https://mdn.github.io/shared-assets/; child-src 'self'; worker-src 'self';
x-frame-options: DENY
origin-trial: AxVILwizhbMjxFeHOn1P3R8niO1RJY/smaK4B4d1rLzc1gTaxtXMSaTi+FoigYgCw40uFRDwFcEAeqDR+vVLOW4AAABfeyJvcmlnaW4iOiJodHRwczovL2RldmVsb3Blci5tb3ppbGxhLm9yZyIsImZlYXR1cmUiOiJQcml2YXRlQXR0cmlidXRpb25WMiIsImV4cGlyeSI6MTc0MjA3OTYwMH0=
x-cloud-trace-context: fb5b5acef97e4086afb97bc722eb9035
date: Thu, 09 Oct 2025 17:24:34 GMT
server: Google Frontend
via: 1.1 google
vary: Accept-Encoding
content-encoding: gzip
x-cache: miss
pageAction.onClicked - Mozilla | MDN
browser.pageAction.onClicked.addListener(listener)
browser.pageAction.onClicked.removeListener(listener)
browser.pageAction.onClicked.hasListener(listener)
Events have three functions:
addListener(listener)
Adds a listener to this event.
removeListener(listener)
Stop listening to this event. The listener
argument is the listener to remove.
hasListener(listener)
Checks whether a listener
is registered for this event. Returns true
if it is listening, false
otherwise.
listener
The function called when this event occurs. The function is passed these arguments:
tab
A tabs.Tab
object representing the tab whose page action was clicked.
OnClickData
An object containing information about the click.
modifiers
An array
. The keyboard modifiers active at the time of the click, being one or more of Shift
, Alt
, Command
, Ctrl
, or MacCtrl
.
button
An integer
. Indicates the button used to click the page action icon: 0
for a left-click or a click not associated with a mouse, such as one from the keyboard and 1
for a middle button or wheel click. Note that the right-click is not supported because Firefox consumes that click to display the context menu before this event is triggered.
When the user clicks the page action, hide it, and navigate the active tab to "https://giphy.com/explore/cat ":
let catGifs = "https://giphy.com/explore/cat";
browser.pageAction.onClicked.addListener((tab) => {
browser.pageAction.hide(tab.id);
browser.tabs.update({ url: catGifs });
});
browser.pageAction.onClicked.addListener(() => {});