TweepsBook - A better bookmarking tool for power Twitter users that you can use to filter, organize and bookmark tweets on your liking.
Tweetflick - Save, organize & find Tweets to get the most out of Twitter
Twitter Bookmarks - Create shortcuts to your favorite users/tweets on Twitter
TWRL - It's like merging Instagram and Texting into one platform.
Lightbeam for Firefox - Mozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.
Twitter Ads - Twitter offers targeted ad placement on their ad platform.