Hi I have this irritating popup showing up almost every time I open a tab saying: "Please support this add-on by enabling the monetisation feature. It allows merchant sites that you shop from to generate revenue for this addon developer. This involves setting cookies on merchant sites of your visit which will tag the developer of this addon as the referrer where he will be compensated.Merchant sites visited will be forwarded through http://r.srvtrck.com, to set a cookie which will tag this developer as the referrer. No data is collected from you." Seems it tries to appear legitimate having a moz-extension:// address in the title bar. I have tried with a malware program, but no luck. What do you recommend? (OSX 10.12.6, Firefox 63.0.3)