Hi,

The people who answer questions here, for the most part, are other Firefox users volunteering their time (like me), not Mozilla employees or Firefox developers.

If you want to leave feedback for Firefox developers, you can go to the Firefox Help menu and select Submit Feedback... or use this link. Your feedback gets collected by a team of people who read it and gather data about the most common issues.

Is there anything we can help you with?

Your browser is good, but most sites collect data about their visitors. If their surveillance system is against the protection of your browser, then this site refuses to work any further. That is, the site starts having problems with displaying photos, videos, chat does not work.   For example, I'm talking about - vk.com. When the browser is properly configured and protects the privacy of the user, this site hides all the possibilities for which people come here. Another example, https://www.pornhub.com/login. I could not log into my account on this site.

But if I use Google Chrome browser, everything works fine.

I mean, the correct privacy settings made with addon Privacy Settings by Jeremy Schomery https://addons.mozilla.org/en-US/firefox/addon/privacy-settings/?src=ss

You should contact their support and ask about this.

FredMcD сказал(а)

You should contact their support and ask about this.

Yes, I wrote a request to Support site VK.kom 
They suggested using a "different" browser. In addition, they immediately made a reservation that it is not an offer to use a different browser, but just a piece of advice. That is, they do not recognize this as their official position. But in reality, so it is.

Да, я писал запрос в Поддержку сайта vk.com Они предложили использовать "другой" браузер. При этом, они тут же сделали оговорку, что это не официальное указание использовать другой браузер, а просто совет. То есть, они не признают это своей официальной позицией. Но в реальности, так оно и есть.