Example: Searching for "<span id="username">" and copying his username before </span>
You can easily find the tag's text content in a tab:
var user = document.getElementById("username").textContent;
But... I'm not sure what you have in mind for reading across all tabs and what should go on the clipboard when (if you mean copying to the clipboard).
Searching in Elements and copying certain text
Good Day,
Is there any script or anyone can make a script for copying certain text in the elements for all tabs??
Example: Searching for "" and copying his username before
johnsmith
Copying the johnsmith.