A tab is opened everytime I start the browser following an adpop-1.com url. How to I change this to a normal new tab?

Hi, first please see - [[How to set the home page]], and in 'Home Page,' make sure that in addition to your home page URL, there isn't anything else - if there is, just delete it. (the Firefox start page is '''about:home''' but you may have set a different one, or the New Tab page is '''about:newtab'''). If it's easier, you can just click on Restore to Default instead. If that doesn't help, or the tab comes back, you can try these free programs to scan for malware, which work with your existing antivirus software: * [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner] * [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware] * [http://support.kaspersky.com/viruses/disinfection/5350 Anti-Rootkit Utility - TDSSKiller] * [http://general-changelog-team.fr/en/downloads/viewdownload/20-outils-de-xplode/2-adwcleaner AdwCleaner] (for more info, see this [http://www.bleepingcomputer.com/download/adwcleaner/ alternate AdwCleaner download page]) * [http://www.surfright.nl/en/hitmanpro/ Hitman Pro] * [http://www.eset.com/us/online-scanner/ ESET Online Scanner] '''Note that not all removal programs will detect all malware, so you may need to run several or all of them.''' Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article. Did this fix your problems? Please report back to us. Thank you!