webNavigation.onTabReplaced
Fired when the contents of the tab is replaced by a different (usually previously pre-rendered) tab.
Syntax
browser.webNavigation.onTabReplaced.addListener(
  listener,                   // function
  filter                      // optional object
);
browser.webNavigation.onTabReplaced.removeListener(listener)
browser.webNavigation.onTabReplaced.hasListener(listener)
Events have three functions:
addListener(listener)- 
Adds a listener to this event.
 removeListener(listener)- 
Stop listening to this event. The
listenerargument is the listener to remove. hasListener(listener)- 
Check whether
listeneris registered for this event. Returnstrueif it is listening,falseotherwise. 
addListener syntax
>Parameters
listener- 
The function called when this event occurs. The function is passed this argument:
details- 
object. Details about the tab replacement.replacedTabId- 
integer. The ID of the replaced tab. tabId- 
integer. The ID of the replacement tab. timeStamp- 
number. The time when the replacement happened, in milliseconds since the epoch. 
 
 
Examples
function logOnTabReplaced(details) {
  console.log(`onTabReplaced ${details}`);
}
browser.webNavigation.onTabReplaced.addListener(logOnTabReplaced);
Browser compatibility
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Note:
This API is based on Chromium's chrome.webNavigation API. This documentation is derived from web_navigation.json in the Chromium code.