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Why is firefox searching with Yahoo! When I have eliminated ALL search engines except for Google??

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I went to search for something and Yahoo! came up as the search page, even though I have taken out every search engine except for Google, my preferred search engine. How is this possible??

I went to search for something and Yahoo! came up as the search page, even though I have taken out every search engine except for Google, my preferred search engine. How is this possible??

Additional System Details

Application

  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.101 Safari/537.36

More Information

Happy112 561 solutions 5694 answers

Hi  ! Yahoo Search is a legitimate search engine, but you may be dealing with search.yahoo.com, which is a browser hijacker, malware that you of course want to get rid of.

Go to the 3-bar menu (or   'Tools') => Addons => Extensions and look for any unfamiliar or suspicious looking extensions, like e.g. :

SafeSearch Incognito SearchAssist Incognito Search for Fire Fox 1.6 SafeSearch ch SafeSearch net File Convertor and Search Addon

When you find any : remove them.

Do the same in Windows' Control Panel => Programs.

However :   most malware will be 'hiding' somewhere , so let's run malware scans :

Further information can be found in this article :
https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware?cache=no

Run most or all of the listed malware scanners.
They all work differently   -   what one program doesn't pick up, the other might.

Also see : https://malwaretips.com/blogs/yahoo-toolbar-removal/

Hi ! Yahoo Search is a legitimate search engine, but you may be dealing with search.yahoo.com, which is a browser hijacker, malware that you of course want to get rid of. Go to the 3-bar menu (or &nbsp; 'Tools') => Addons => Extensions and look for '''any unfamiliar or suspicious looking extensions''', like e.g. : SafeSearch Incognito SearchAssist Incognito Search for Fire Fox 1.6 SafeSearch ch SafeSearch net File Convertor and Search Addon When you find any : remove them. Do the same in Windows' Control Panel => Programs. 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. Also see : https://malwaretips.com/blogs/yahoo-toolbar-removal/
John 0 solutions 4 answers

I've done these checks and Yahoo is STILL defaulting when I have not selected that - my Firefox default is Google!!! I use NOD32 by Eset and it has not detected any malware. How do I change this??? Uninstall and reinstall Firefox perhaps? Thanks, John

I've done these checks and Yahoo is STILL defaulting when I have not selected that - my Firefox default is Google!!! I use NOD32 by Eset and it has not detected any malware. How do I change this??? Uninstall and reinstall Firefox perhaps? Thanks, John
cor-el
  • Top 10 Contributor
  • Moderator
17344 solutions 156777 answers

This could be an issue caused by AdAware or Web Companion from Lavasoft.

You can look for a file named dsengine.js in these locations. You should only find channel-prefs.js in the "defaults\pref" location. Any file found here apart from channel-prefs.js is suspicious. You can check the content of the file in a text editor (use open with and do not double-click the file).

C:\Program Files\Mozilla Firefox\defaults\pref\
C:\Program Files (x86)\Mozilla Firefox\defaults\pref\

You can look for a file named dsengine.cfg in the main Firefox program folder.

C:\Program Files\Mozilla Firefox\
C:\Program Files (x86)\Mozilla Firefox\

Delete the dsengine.js and dsengine.cfg files when present.

This could be an issue caused by AdAware or Web Companion from Lavasoft. You can look for a file named dsengine.js in these locations. You should only find channel-prefs.js in the "defaults\pref" location. Any file found here apart from channel-prefs.js is suspicious. You can check the content of the file in a text editor (use open with and do not double-click the file). C:\Program Files\Mozilla Firefox\defaults\pref\ C:\Program Files (x86)\Mozilla Firefox\defaults\pref\ You can look for a file named dsengine.cfg in the main Firefox program folder. C:\Program Files\Mozilla Firefox\ C:\Program Files (x86)\Mozilla Firefox\ Delete the dsengine.js and dsengine.cfg files when present.