This is a great extension for Firefox, allowing you to switch between different Flash player versions. This is great considering the only other way to test Flash with different players is to uninstall your current Flash player and reinstall the one you want to test.
This extension comes with all the currently published flash player plugins (from the version 2 to the most recent 9,0,16) and allows you to easily switch from one plugin to another, or also to remove the currently installed plugin (maybe for testing the express install).
Once installed you will find the “flash switcher” icon in the Firefox statusbar at right. Click on it and a list of available options will appear.
