what happened to the quit option?
Additional System Details
- Shockwave Flash 11.1 r115
- User Agent: Mozilla/5.0 (Android; Mobile; rv:20.0) Gecko/20.0 Firefox/20.0
On Android 4 and higher you can press the app switch button and swipe Firefox (or any other app) to close.
You could install the QuitNow extension if you need the menu item back.
Please check out how to install an add-on to add Quit back for detailed instructions on installing QuitNow that kbrosnan mentioned.