| Web2PDF | | - | | |
| Web Search Pro | | - | | |
| Web Search Optimizer | | - | | |
| Web Ranking Pro | | - | | |
| Web Mirror View | | - | | |
| Web Cache View Plus | | - | | |
| Weather Watcher Live | | - | | |
| Weather Now | | - | | |
| Weather Button | | - | | |
| Wayback Everywhere | | - | | |
| WOT | | - | | |
| WEAlias | | - | | |
| VineVolumeFixer | | - | | |
| Vine Downloader | | - | | |
| View on reddit | | - | | |
| View Page Archive ＆ Cache | | - | | |
| View Image | | - | | |
| Video Resumer | | - | | |
| Video PopUp | | - | | |
| Video Mouse Wheel | | - | | |
| Video Blocker | | - | | |
| Update Listener | | - | | |
| Unshorten.It! | | - | | |
| Uncheck Stay-signed-in for Google Login | | - | | |
| UnTube | | - | | |
| URLs List | | - | | |
| URLUncover for Firefox | | - | | |
| URL in a Box | | - | | |
| URL Buttons Pack | | - | | |
| Twitter自動画像拡大フィルタ | | - | | |
| Twitter検索 | | - | | |
| TwitterTweetFilter | | - | | |
| Twitter easySearch | | - | | |
| Twitter View Original Images | | - | | |
| Twitter Side Switcher | | - | | |
| Twitter Origifier | | - | | |
| Twitter New Tab | | - | | |
| Twitter Image Downloader | | - | | |
| Twitter Address Bar Search | | - | | |
| TwittagFox | | - | | |
| TwitKit+ | | - | | |
| Twit Side | | - | | |
| TweetRight | | - | | |
| Tweet-hider | | - | | |
| Tweet That! | | - | | |
| Tweet Line | | - | | |
| Tweet Context | | - | | |
| Tweet Clicker | | - | | |
| Tumblr Post | | - | | |
| Tumblr Image Sorter | | - | | |