Hi Nushrat,
Try selecting whole table then select element type as Table(web). Then you will get this option. But like in HTMl mode if we are selecting a cell then also we used to get the read table option you will not experience the same in chrome FF. Like this lot of drawbacks are there while automating in Browser mode.
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Amlan Sahoo
RPA Consultant
Equinix
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Regards,
Amlan Sahoo