Is there a way I could delete an account?

Could you please elaborate?

Firefox won't start, won't delete, just spins. No one to help.

bunabear, this article should help: [[Firefox won't start - find solutions]] If that doesn't fix your issue, you should use [https://support.mozilla.org/en-US/questions/new this link] to start a new thread, where the people helping out can get more details about your setup.