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not my cmd... found on the web
You can try it . Nice shell interface to search google from the command line.Visit http://goosh.org in your browser.
Sometime you need to run firefox from the command just to rectify something about it.Means,if some of the addon broke you firefox setting or theme broke your ff setting then fall back to commandline i.e shell and type the mentioned command. It will open up an information box with few option along with the checkbox besides them(means you can select them) to start the web browser in safe mode.Besically deactivating all the addon and theme,except the default one.Once you are done/rectified thing ..close that session and reopen the browser normally.It should work.