Twitter prevent me from sending my authentification message

#1

The error I get

Verifying my Blockstack ID is secured with the address 1PvYtQZPSFFDRBZx4PbM2rGpQcE7BY7i72 https://blockstack.org/try-blockstack

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Sent with Firefox latest version and does not work even with uBlock and other security plugins deactivated

Thanks