to change the default search engine (Google)

you must modify browser.search.defaultenginename

type in the address bar about:config

then press the button i'll be careful i promise

then type in the bar browser.search.defaultenginename

then right-click on it, select modify, type YAHOO (or other...), click OK,

exit firefox and restart-it.

or see also : Search Bar

Change the default search engine in address/location bar:

you must modify keyword.url in about:config

same as above and type in the bar for yahoo

http://search.yahoo.com/search?p=

or find other search engine in Keyword.URL

thank you

Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.

Hi, Thank you for reply. I have followed exactly as you described

to change the default search engine (Google)

you must modify browser.search.defaultenginename

type in the address bar about:config

then press the button i'll be careful i promise

then type in the bar browser.search.defaultenginename

then right-click on it, select modify, type YAHOO (or other...), click OK,

exit firefox and restart-it.

But even I restarted computer the search engine is still Google. However, I have changed the search bar on top right to Yahoo. I have attached screen shots which might help you if I am making any mistake.

Thank you

The search engine in opening/home page ?

see : How to set the home page

thanks again

Thank you for reply. I appreciate that.

Not home page, default search engine please refer screen shot below. Marked in red. You can see the top right search bar is changed to Yahoo I want the middle one to be changed to Yahoo.

Thank you once again.

Open about:config in Firefox (if you doing it for the first time, you may have to promise you are going to be careful)

Search for keyword.url from the filter box.

Double click on this entry. It will open a dialog where you can edit the ‘keyword.url’ string.

Change this string to whatever you want it to be:

You successfully change the search engine in Search Bar , this is the place for search.

Ari94... "Not home page, default search engine please refer screen shot below. Marked in red. You can see the top right search bar is changed to Yahoo I want the middle one to be changed to Yahoo." you must change homepage to http://www.yahoo.com/ try and tell us.

thanks

Ari94, in about:home, sorry my mistake, it is a little difficult see :

https://support.mozilla.org/en-US/questions/779082#answer-187996

except solution chosen read all the very useful replys.

thanks and sorry again

Thank you for answering.

Hi,

Thank you for support.

It seems making yahoo.com home page is rather easier and safer than messing with technical terms. I have changed Home page to Yahoo.

I appreciate cooperation extended by you and others.