I wrote a plugin that I've been using for my own purposes so far, and it's working fine, but there are still a few bugs/annoyances I want to fix before I release it to Construct's general plugin pool.
One of these bugs is that it breaks Construct in debug mode.
This is because the plugin requires the application to run in a specific domain (in this case Synaptop) to run any of the plugin's functionality, similar to Kongregate.
However, Kongregate's plugin and Facebook's plugin simply do not run in the Construct 2's debugger, my plugin actually breaks the debugger. (When exported and run in the wrong domain it simply doesn't run, similar to the other plugins, when exported and run on Synaptop, it works as it should.)