This version is for Firefox users only. On Chrome, XKit updates itself automatically, and Safari 6 users do not have to update.

Firefox 22 brought some changes that broke XKit. If your XKit is missing, please follow the following steps to get it back:

1. Go to the XKit download page
2. Install XKit again (no need to uninstall/disable it)
3. Restart Firefox, and it should be working now. 

I’m so sorry about this. If you hit any bugs, please let me know.