Amazon Silk is a web browser developed by Amazon for use on their Fire devices (such as Kindle Fire and Fire TV) and Echo Show devices. At that time, Amazon Silk did not support traditional browser extensions like those found in browsers such as Google Chrome or Mozilla Firefox.

However, it's important to note that software and features can be updated or changed over time. Amazon may have made updates to the Silk browser since my last update, so I recommend checking the latest information from Amazon or the official Silk browser documentation to confirm whether browser extensions are now supported.

To get the most accurate and up-to-date information, you can visit the official Amazon Silk support page or contact Amazon customer support directly