6.2.2 Update Disables Flash in SilkJanuary 27, 2012
When Amazon pushed out the 6.2.2 update for the Kindle Fire, they added a couple of new features to Silk. They also added the ability to disable Flash if you wish, and as a special gift, they turned it off by default. If you’re using a website that needs Flash and it’s not working, you likely need to re-enable Flash in Silk.
To turn Flash back on, open Silk by tapping Web from the Kindle Fire’s Home screen. Once Silk launches, tap the Menu icon and tap Settings. A little over halfway down the settings screen, you’ll see a setting called “Enable Flash”. After the 6.2.2 update, this setting is set to Off. Tap it and you can change it to either On Demand or Always On. (On Demand will load Flash only when a website requires it. Always On will load Flash when you launch Silk and it will remain running.)
In case you’re interested, the other new features added are a full-screen mode and encryption when using Cloud Acceleration mode. You can switch into full-screen mode by tapping the full-screen icon at the right side of the Options bar while in Silk. You can enable encryption for Cloud Acceleration mode by checking the Optional Encryption checkbox in Silk settings.