Thank you for feedback.

Once you run Wipe out and reset, then no need to remove all extension data.

Can you please contact support and provide more information about your activity in the last few hours (websites you visited, video downloaded, any settings you turned on)?

If you're using Windows 10/11, expand firefox process in the task manager to see if a subprocess like avd-host.exe or ffmpeg.exe are causing the issue.

Also, what's your browser and operating system versions, hardware you use? The more information you provide the better.

Copy your review message from here so we can identify your response.

Thanks again.