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firefox has an extension that does similar https://addons.mozilla.org/en-US/firefox/addon/pinpointer/ https://addons.mozilla.org/en-US/firefox/addon/pinpointer/
by iamapipebomb 8y ago
firefox has an extension that does similar
https://addons.mozilla.org/en-US/firefox/addon/pinpointer/ https://addons.mozilla.org/en-US/firefox/addon/pinpointer/
discussed here https://news.ycombinator.com/item?id=17556805 https://news.ycombinator.com/item?id=17556805