https://support.mozilla.org/en-US/kb/avoid-and-report-mozilla-tech-support-scams Any site claiming to do Firefox support by phone is FAKE and not connected with Mozilla in any way. Mozilla does not provide any form of one on one support by phone, chat or email as they do not have the resources to have call centres to do this for free for a free to use product. You can create a new thread here asking your question on the issue(s) you are having and people here may be able to help you.