I created this account to rate this atrocious parasite of an extension. It's useless unless you pay 18.50€. It puts a huge watermark over all videos. It abuses the spirit of open source and sells the hard work of ffmpeg developers for an absolutely horrendous price. I hope the scammers who publish this extension will get banned from the Firefox extension site as soon as possible. Please report this extension as fraudulent so we can stop this kind of abuse.