Add-ons
To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseKProxy Extension for Firefox Version History
6 versions
Be careful with old versions!
These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.
To create your own collections, you must have a Mozilla Add-ons account.
