Hi humanifund, Have you tried going to ''Tools > Add-ons'' to see if you can remove it from there? I wouldn't be surprised it has changed other items as well, such as your homepage. If so, you should take a look at the Knowledge Base article [[How to set the home page]]. There are steps in that article to reset your homepage preferences to default. I would try that first to clear out any strangeness. If that works, you can try setting your homepage again to your personal preference. If search has been affected too, look at the Knowledge Base article [[Search bar]]. If the address bar search has been changed as well, you might want to take a look at [[Location bar search]]. If that doesn't work you should look at the article [[Preferences are not saved]]. Finally, your issue may be because you've been hit with some [https://support.mozilla.org/en-US/kb/Is%20my%20Firefox%20problem%20a%20result%20of%20malware?s=malware&r=0&e=sph&as=s#w_how-do-i-get-rid-of-malware Malware]. Hopefully this helps!