What I did was check the plugin folder for Firefox, I found it there. To make things easy, I just went to my C drive and entered WCChromeExtn.crx into the search bar and let the computer do the work for me. I found it, opened Coolnovo(same as google chrome) went to the extension page, dragged the crx from the plugin folder onto the extension page and it was done. I hoped it helped. Cheers.