How to retrieve the element where a contextmenu has been executed
You can inject content script with contextmenu event listener and store element that was clicked:
manifest.json
"content_scripts": [{ "matches": ["<all_urls>"], "js": ["content.js"], "all_frames": true, "match_about_blank": true}]content script.js
//content scriptvar clickedEl = null;document.addEventListener("contextmenu", function(event){ clickedEl = event.target;}, true);chrome.runtime.onMessage.addListener(function(request, sender, sendResponse) { if(request == "getClickedEl") { sendResponse({value: clickedEl.value}); }});background.js
//backgroundfunction mycallback(info, tab) { chrome.tabs.sendMessage(tab.id, "getClickedEl", {frameId: info.frameId}, data => { elt.value = data.value; });}