[Greasemonkey] how to load the script in linux?

[whida elastu]

hi, i'm a newbie in linux and i want to install greasemonkey in my browser. from the website i downloaded the file (.xpi) then unzip it to certain folder. but the greasemonkey is still not included yet in the mozilla extensions. i wonder what's the next step (after unzipping the xpi file) so that the grasemonkey gets installed in my browser?

when i'm on windows xp, the xpi file is simply just to be clicked to install (am i right?) and then the greasemonkey appears in the extensions slot.

thanks for your attention,

 		
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