How do I stop a rogue search link opening up on new web pages instead of Firefox's page of favourite links?

Hi &nbsp; ! Too bad you couldn't provide a link to that browser hijacker (for that's probably what it is). If you can give us a link or a name, that would be great. But it sure sounds like you've got malware, and here's what you should do : Go to the 3-bar menu => Addons => Extensions and look for any unfamiliar or suspicious looking extensions, like e.g.: SafeSearch Incognito SearchAssist Incognito When you find any : &nbsp; remove them. Also look in : 3-bar menu (or 'Tools') => Options => Advanced => Network tab => Under : 'Offline Web Content and User Data' However : &nbsp; most malware will be 'hiding' somewhere , so let's run malware scans : Further information can be found in this article : <BR> https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware?cache=no <BR> '''Run most or all of the listed malware scanners.''' <BR> They all work differently &nbsp; - &nbsp; what one program doesn't pick up, the other might. Especially for Mac : https://www.malwarebytes.com/mac/