What are the steps to utilize chrome.tabs.onUpdated.addListener?

I am currently working on a Chrome extension where I need to display an alert() showing the page URL whenever the user switches tabs or enters a new URL in a tab.

However, my current implementation is not functioning as expected:

chrome.tabs.onUpdated.addListener(function(integer tabId, object changeInfo, Tab tab) {
    alert(changeInfo.url);
});

chrome.tabs.onActivated.addListener(function(object activeInfo) {
    // Additionally, provide guidance on how to retrieve the tab URL using activeInfo.tabid
});
javascriptgoogle-chrome-extension

Answer №1

Modify the functions signatures by removing integer, object, and Tab. Additionally, replace .onUpdated with .onActivated

chrome.tabs.onUpdated.addListener(function(tabId, changeInfo, tab) {
   alert(changeInfo.url);
}); 

chrome.tabs.onActivated.addListener(function(activeInfo) {
  // fetch tab url using activeInfo.tabid
  chrome.tabs.get(activeInfo.tabId, function(tab){
     console.log(tab.url);
  });
});

Answer №2

chrome.tabs.onUpdated.addListener((tabId, changeInfo, tab)=>{
    chrome.tabs.query({
        active: true,
        currentWindow: true
    },(tabs)=>{
        if(changeInfo.url && tabId === tabs[0].id) {
            console.log("Only the Active Tab");
        };
    })})

This code snippet checks for updates only on the currently active tab.

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