The main reason why your security software reports Amazon Toolbar as a potentially unwanted program (PUP) and, more precisely, an adware, is that it has been relying on a questionable distribution technique called bundling. However, some antivirus tools (for example, Malwarebytes) have started detecting this app as 1button. Besides, with its help they can create wish lists and use other practical features. What is Amazon 1Button App? Amazon 1Button App – potentially unwanted app that can be detected as 1buttonĪmazon 1Button App (alternative names are The Amazon Browser Bar and Amazon Assistant Toolbar) is a seemingly useful application which notifies its users about the latest online shopping deals and discounts.