Adobe Connect, which is the teleconference software I use for work, stopped working in Google Chrome 42.0.\<some version\>. After ignoring it for a while and several failed attempts to fix it, I finally figured out how to resurrect it.

1. Open chrome://flags/ in Chrome, enable the plug-in under 'Enable NPAPI Mac, Windows';
2. Install Adobe NPAPI Flash plug-in: http://get.adobe.com/flashplayer;
3. Open chrome://plugins in Chrome, under the section 'Adobe Flash Player', disable PPAPI and enable NPAPI.

References

• Adobe Connect Help > Chrome browser incompatibility with Connect Add-in
• Chroium project Issue 453263: Missing NPAPI plugins