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|User since||November 15, 2010|
|Number of add-ons developed||0 add-ons|
|Average rating of developer's add-ons||Not yet rated|
Greasemonkey Rated 4 out of 5 stars
Yes it's true, it doesn't work anymore.
But u guys, u can do this to get it back
Download Greasemonkey - https://addons.mozilla.org/en-US/firefox/addon/748/
After u downloaded Greasemonkey, go to this website and install Power Twitter - http://userscripts.org/scripts/show/55433
Yep, and you got ur Power Twitter back :)