- The Planet Crafter
- The QR Code Extension
- The Quarry
- The Sims™ 3
- The Sims 4
- The Top Fives
- The Top Inbox for Gmail
- The Tracktor - Price History Tracker
- The Wandering Village
- TheFreeDictionary.com Extension
- Thesaurus: Synonym 4 Right Click
- ThinkVantage Password Manager
- ThreePrice - Price comparison engine
- Thunder VPN
- Tic Tac Toe
- TickTick - Todo & Task List
- Tidy Sidebar
- TightVNC
- Tile
- Timberborn
- timeStats
- Timewarp
- TinEye Reverse Image Search
- Tinkercad
- Tiny WebFilter: Anti-Porn & Block Adult Sites