Gets the current zoom factor of a specified tab.
Syntax
browser.tabs.getZoom(
tabId, // optional integer
function(zoomFactor) {...} // function
)
Parameters
tabIdOptionalinteger. The ID of the tab to get the current zoom factor from; defaults to the active tab of the current window.callbackfunction. Called with the tab's current zoom factor after it has been fetched.The function is passed the following arguments:zoomFactornumber. The tab's current zoom factor.
Browser compatibility
Examples
Acknowledgements
This API is based on Chromium's chrome.tabs API. This documentation is derived from tabs.json in the Chromium code.
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