To revert to Google as your preferred search engine, please do the following.
In the location bar, type about:config and hit Enter.
In the filter at the top, type: keyword.URL
Double click it and remove http://blekko.com/ws/
and replace it with http://www.google.com/search?q=
The URL to add in "keyword.URL" becomes a link in this post, so right click it and choose "Copy Link Location" to copy it to the Windows clipboard. Then hit CTRL+V to paste it. Saves you having to type the whole thing.
To reset your home page, do the following.
Go to the site you want to set as your homepage.
Click the orange Firefox button and go to Options | Options | General
Make sure it says "Show My Homepage" in the first dropdown menu.
Click the button called "Use Current Pages" to set the homepage to the one you have on the screen.
After you complete the above steps, install this add-on to prevent another search engine from modifying your preferences: https://addons.mozilla.org/en-US/firefox…
from xircal of mozilla firefox support. ME? just sharing it...