<a title="Power Twitter" href="https://addons.mozilla.org/en-US/firefox/addon/9591" target="_blank">Power Twitter is a addon for firefox that gives twitter a new look with a lot of features. Here is the list of features:

Power <a class="zem_slink freebase/en/twitter" title="Twitter" rel="homepage" href="http://twitter.com">Twitter adds features to the Twitter <a class="zem_slink freebase/en/user_interface" title="User interface" rel="wikipedia" href="http://en.wikipedia.org/wiki/User_interface">Web interface including:

-inline <a class="zem_slink freebase/en/youtube" title="YouTube" rel="homepage" href="http://www.youtube.com/">YouTube, <a class="zem_slink freebase/en/flickr" title="Flickr" rel="homepage" href="http://www.flickr.com">Flickr, <a class="zem_slink" title="TwitPic" rel="homepage" href="http://twitpic.com">TwitPic, <a class="zem_slink freebase/en/google" title="Google" rel="homepage" href="http://google.com">Google <a class="zem_slink freebase/en/google_maps" title="Google Maps" rel="homepage" href="http://maps.google.com">Maps, <a class="zem_slink" title="Song.ly" rel="homepage" href="http://song.ly/">song.ly, and all sorts of playable/viewable media
-link expansion
-link translation to page titles
-search scoped to a specific user
-status history peeking on mouseover
-Facebook status updates
-custom settings
-@mentions of friends on profile pages
-photo uploading
-link shrinking
-#dailyquestion

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