The extension has not been updated in 3 months. https://addons.mozilla.org/en-US/firefox/addon/eset-browser-privacy-security/?utm_source=addons.mozilla.org&utm_medium=referral&utm_content=search

''<p>Marc Goulet [[#question-1526254|said]]</p>'' <blockquote>Whenever I try to log into my Eset Password Manager it says unable to log in offline. Yet Eset password manager works on other browsers. I have refresh the browser and removed and re add the Eset extension. </blockquote> Hey, had the same issue before. Turns out the ESET Password Manager needs an internet connection to log in initially. Make sure the browser you're using isn't blocking it (like via extensions or strict privacy settings). Also, try disabling any VPN or proxy temporarily. It worked fine for me after that. Hope it helps!