Do you mean this one?
It has 13 Users and 279 Reviews, that’s a HUGE red flag!
Also, it was released 11 days ago by a user registered also 11 days ago - another big red flag.
I wish the addons store had some automatic threat level system, instead of the generic warning message that people learn to ignore (because basically all extensions has it) 
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There was a an article published here recently about this topic: