I opened my e-mail (Yahoo webmail) in Firefox, then opened Chrome to play Pandora and opened a VPN connection... when I looked back at Firefox, a new tab had opened with this web site: https://haeranasscom.org/1961165911159/8c6073d96a2cf521e68f99b5891decd8.html which was prompting me to install an 'urgent firefox update'. The web page also had a popup which appeared to indicate that the update had already been downloaded and I just had to install it. The downloads folder has no record of this purported update file, so the whole thing is fishy. I wanted to quickly post this as a community service, but if there are any suggestions on how to avoid having these kinds of third-party fishing antics appear in Firefox, I'm all ears! This is quite unusual for me to see.