If the tool is watching every ASIN you open, who benefits?
Advanced private label sellers guard winning niches carefully. Many browser extensions are useful — and some product models depend on aggregating marketplace signals into large opportunity databases that other customers can query. That is a design choice, not always “malice,” but it raises a real question:
If your research tool is logging what you browse to improve a shared database, are you also training the market on your hunting patterns?
You do not need paranoia. You need a clear privacy model before you install anything that watches Amazon PDPs all day.