hi, unfortunately this sounds like an issue caused by adware/malware. please try to launch firefox in safemode once, then go to the firefox menu ≡ > add-ons > extensions panel & remove any suspicious entries (things that you have not installed intentionally, don't know what purpose they serve, toolbars, etc).

Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems

Thank you for the prompt reply Philipp. Before I change my display name your responded. I had an unrecognizable extension, it was quick fix.