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

Èròjà atẹ̀lélànà yii ni a ti fi pamọ́ fọ́jọ́ pípẹ́. Jọ̀wọ́ béèrè ìbéèrè titun bí o bá nílò ìrànwọ́.

How do I remove all occurrences of Yahoo from my ' about:config ' file?

  • 2 àwọn èsì
  • 4 ní àwọn ìṣòro yìí
  • 11 views
  • Èsì tí ó kẹ́hìn lọ́wọ́ cor-el

more options

Thanks in advance for any help you can offer.

Somehow, I got hijacked by Yahoo yesterday, and that ended up as my default search provider. And, after that, the little magnifying glass where search providers are listed disappeared. That doesn't make Firefox feel very secure!

I've restored the search 'magnifying glass' through 'Customize,' but I don't want any more Yahoo 'surprises.'

The four lines below are copied from my ' about:config ' file. Are they necessary?

browser.search.order.US.1;data:text/plain,browser.search.order.US.1=Yahoo browser.search.order.2;Yahoo browser.contentHandlers.types.0.uri;https://add.my.yahoo.com/rss?url=%s browser.contentHandlers.types.0.title;My Yahoo!

Plus these two:

gecko.handlerService.schemes.mailto.0.uriTemplate;https://compose.mail.yahoo.com/?To=%s gecko.handlerService.schemes.mailto.0.name;Yahoo! Mail

Thanks in advance for any help you can offer. Somehow, I got hijacked by Yahoo yesterday, and that ended up as my default search provider. And, after that, the little magnifying glass where search providers are listed disappeared. That doesn't make Firefox feel very secure! I've restored the search 'magnifying glass' through 'Customize,' but I don't want any more Yahoo 'surprises.' The four lines below are copied from my ' about:config ' file. Are they necessary? browser.search.order.US.1;data:text/plain,browser.search.order.US.1=Yahoo browser.search.order.2;Yahoo browser.contentHandlers.types.0.uri;https://add.my.yahoo.com/rss?url=%s browser.contentHandlers.types.0.title;My Yahoo! Plus these two: gecko.handlerService.schemes.mailto.0.uriTemplate;https://compose.mail.yahoo.com/?To=%s gecko.handlerService.schemes.mailto.0.name;Yahoo! Mail

Ọ̀nà àbáyọ tí a yàn

browser.search.order.US.1;data:text/plain,browser.search.order.US.1=Yahoo > default search engine; this line is necessary, but you can set another value to replace Yahoo, with Google or Bing for example

browser.search.order.2;Yahoo > if you use the US version of Firefox, this line is not used

browser.contentHandlers.types.0.title;My Yahoo! > corresponding to the 1st application/website used when you subscribe to a feed

gecko.handlerService.schemes.mailto.0.uriTemplate;https://compose.mail.yahoo.com/?To=%s and gecko.handlerService.schemes.mailto.0.name;Yahoo! Mail > these lines define the 1st element in the displayed list when you open a mailto: protocol (i.e. an email address)

To conclude, except the 1st line, Yahoo is not working on your computer, unless you choose specifically to use it when a contextual menu is displayed.

Ka ìdáhùn ni ìṣètò kíkà 👍 1

All Replies (2)

more options

Ọ̀nà àbáyọ Tí a Yàn

browser.search.order.US.1;data:text/plain,browser.search.order.US.1=Yahoo > default search engine; this line is necessary, but you can set another value to replace Yahoo, with Google or Bing for example

browser.search.order.2;Yahoo > if you use the US version of Firefox, this line is not used

browser.contentHandlers.types.0.title;My Yahoo! > corresponding to the 1st application/website used when you subscribe to a feed

gecko.handlerService.schemes.mailto.0.uriTemplate;https://compose.mail.yahoo.com/?To=%s and gecko.handlerService.schemes.mailto.0.name;Yahoo! Mail > these lines define the 1st element in the displayed list when you open a mailto: protocol (i.e. an email address)

To conclude, except the 1st line, Yahoo is not working on your computer, unless you choose specifically to use it when a contextual menu is displayed.

more options

You can check if you have the XML files of the default search engines including Google in the browser\searchplugins folder in the Firefox program folder.

If not then you need to reinstall Firefox.

You can find the full version of the current current Firefox release (39.0) in all languages and all operating systems here: