Upon entering any site that uses some sort of google's property (recaptcha, youtube videos etc.) Firefox doesn't load some JS files. Some of them are: "https://static.doubleclick.net/instream/ad_status.js" "https://www.gstatic.com/recaptcha/api2/v1537165899310/recaptcha__pl.js" "https://pagead2.googlesyndication.com/pagead/show_companion_ad.js" and "https://www.googletagservices.com/tag/js/gpt.js". I don't use any add-ons, on other browsers everything's ok. I tried re-installing my firefox, clearing cache, safe mode, many tutorials and scanning my system for viruses. None did help. Any solutions?