Removing From Mozilla Default Search Engine

Maybe you never know why default search engine become,  because you installed free software, installed tool bar , etc.
And now you want to remove it and back to became search as default search engine.

• Open your firefox browser
• In the address bar of your browser, type:   about:config   click Go or  press Enter,
Click  I'll be careful, I promise

Type keyword.url on Filter colomn

Double click  keyword.URL

• Change String Value, from

Click OK

Now, default search engine is already back to

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