This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Mulongo oyo etiyamaki na archive. Tuna motuna mosusu soki osengeli na lisalisi

Firefox opens first in Google, good, new tabs open in Yahoo how do I stop this?

  • 3 biyano
  • 4 eza na bankokoso oyo
  • 1 view
  • Eyano yasuka ya Geoffmar

more options

In Windows 10 I set Google as my default opening page, but as soon as I open another tab the Yahoo search engine appears (which I deplore). How, please, do I get rid of Yahoo and make all tabs open in Google?

In Windows 10 I set Google as my default opening page, but as soon as I open another tab the Yahoo search engine appears (which I deplore). How, please, do I get rid of Yahoo and make all tabs open in Google?

Solution eye eponami

Hi, above is a great Extension but please go to Options --> Home And look at the line at the top there for the Homepage and look at the google URL, Click it then use the right arrow key to move along it and see if yahoo is set up after google.

Please Search for Programs & Features on C :\ as it is still there : Check for Anything from a AdAware or Web Companion from Lavasoft. Uninstall them if Found.

Note they have been moving the files to other locations and changing the name, so may have to look hard and long.

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.

Scan with https://www.malwarebytes.com/ regardless of what you find.

Tanga eyano oyo ndenge esengeli 👍 1

All Replies (3)

more options
more options

Solution eye oponami

Hi, above is a great Extension but please go to Options --> Home And look at the line at the top there for the Homepage and look at the google URL, Click it then use the right arrow key to move along it and see if yahoo is set up after google.

Please Search for Programs & Features on C :\ as it is still there : Check for Anything from a AdAware or Web Companion from Lavasoft. Uninstall them if Found.

Note they have been moving the files to other locations and changing the name, so may have to look hard and long.

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.

Scan with https://www.malwarebytes.com/ regardless of what you find.

more options

Thank you for your prompt replies. The problem is now solved!