Firefox is not my main browser, I also use Safari and Chrome, but today I opened Firefox and I saw how a "Yandex" extension was downloaded which added "yandex shoping" tag, 2 "Yandex" bookmarks and changed the way the "new tab" looked like. I immediately removed the extension and went straight to here (support page) and guess what? a Tab opened (opened while I was typing. I copied the link: moz-extension://97c991eb-9c43-4225-835e-9635f5fa1988/sovetnik/popup/popup.html) asking me to allow something to "Yandex" Keep in mind that the extension is already deleted! Am I hacked or something? Let Google track my data, Let Mozilla Track my data, but DEFINITLY not russian "Yandex". I am disgusted at what just happened, but regardless I want to know what exactly happened here and what can I now do to stop/prevent this. Thank you Morzilla for being such a safe browser.