Qyestionable pop-ups?
I keep getting pop-ups in the right lower corner from "mozilla firefox" (not sure if they are legit). They will say: "zeus.2020 trojan detected" or "virus detected" or "system is infected", etc. All have "Mozilla Firefox" in the upper left of the pop-up, and "via rgfirewall.xyz" at the bottom. Is this truly legit, or is it just a nuisance? I've just been closing them with the x or dismiss buttons.
Wšě wotmołwy (3)
It's a spam from this website. You can turn it off in menu ≡ -> Settings -> Privacy & Security -> Permissions -> Notifications.
Wot TyDraniu změnjeny
It sounds like as said you are getting Web Push Notifications from sites you have allowed to send you notifications from. Unfortunately some may instead send you junk, spam, or fake virus alerts and such instead of useful things.
You do also have the option of revoking sites to not get notifications from https://support.mozilla.org/en-US/kb/push-notifications-firefox#w_how-do-i-revoke-web-push-permissions-for-a-specific-site
Dyrbiće so pola swojeho konta přizjewić, zo byšće na přinoški wotmołwił. Prošu stajće nowe prašenje, jeli hišće wužiwarske konto nimaće.