Mozilla Connect

It seems to be available for Google Chrome only at the moment.https://chromewebstore.google.com/detail/jobright-autofill-%E2%80%93-insta/odcnpipkhjegpefkfplmedhmkmmhmoko?authuser=0&hl=en-us&pli=1 

I had a chat with someone discussing Firefox and they told me that they installed the browser on their ATT prepaid phone (the Calypso model, if I remember correctly). They uninstalled it because it didn't work for them. Is there a version of Firefox ...