With Notepad++, for instance, I can look for a text in current tab / all opened tabs / etc ...
Why not such a search in a browser ?
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I've tried Chrome, Edge, Firefox, and all the so-called "search across tabs" addons - they all suck! Often they don't work at all, or can only find words that aren't surrounded by other letters. Some attempt to "scroll to" the result but fail. None of them seem to capture the cursor (you have to click into the search field).