| FirePop! | | - | | |
| FireRun | | - | | |
| FireTrack | | - | | |
| Firefox OS Simulator | | - | | |
| FirefoxView | | - | | |
| Fireword Generator for Firefox | | - | | |
| FlipClock | | - | | |
| FloatNotes | | - | | |
| Fox-Extras | | - | | |
| FoxNotes | | - | | |
| FoxSaver | | - | | |
| Freenode IRC Client | | - | | |
| Furigana Inserter Dictionary | | - | | |
| Geolocation | | - | | |
| GlassMyFox | | - | | |
| Graphing Calculator Toolbar | | - | | |
| Grocery List Generator | | - | | |
| HFJ［今日の聖書］ | | - | | |
| HTML5 Notifications | | - | | |
| Hex Viewer | | - | | |
| Hide in Plain Sight | | - | | |
| Hourly Chime | | - | | |
| Icon Effects | | - | | |
| Internote | | - | | |
| JSA Menu K | | - | | |
| JavaScript Actions Button | | - | | |
| Katakana 2 Romaji ／ カタカナからローマ字 | | - | | |
| Keyword Box | | - | | |
| Kmoney | | - | | |
| LSD | | - | | |
| Language Pack Install Helper | | - | | |
| LastPage | | - | | |
| Launchy | | - | | |
| Link Sgf Viewer | | - | | |
| Local Filesystem Links | | - | | |
| Lookupper | | - | | |
| Lucifox | | - | | |
| Mar Mod | | - | | |
| Mar Mod Updated | | - | | |
| Markdown Viewer | | - | | |
| Memory Fox | | - | | |
| Menu Icons Plus | | - | | |
| Microsoft .NET Framework Assistant | | - | | |
| MinimaList ― To-Do List | | - | | |
| Mobile Barcoder | | - | | |
| Moji | | - | | |
| Moment | | - | | |
| More About | | - | | |
| Mouse Click Counter | | - | | |
| Mozilla Labs： Prospector - Query Stats | | - | | |
