Hi This is not really a support issue with Firefox, but I will do my best to help. I would recommend using the software that your fellow participants are using as you will probably all need to be on the same platform. Some suggestions that you could use are listed [https://support.mozilla.org/en-US/kb/hello-status here]. I notice that you are using an older version of Firefox. I strongly recommend that you update to make sure that you have the latest security and stability fixes as well as new features. You can read more about how to update [https://support.mozilla.org/en-US/kb/update-firefox-latest-version here].