Firefox for Android's voice input feature lets you speak into the address bar to search instead of using the keyboard.
Search with voice input
- Tap the address bar.
- Tap the microphone icon:
- Say your search terms out loud when prompted.
Enable or disable voice search
Tap the menu button.
- Tap .
- Tap under the General section.
- Tap the switch next to Show voice search to toggle this feature on or off.