In addition to the documented Mobile Firefox keyboard shortcuts, the following keyboard commands are useful for developers working on Fennec or addon code.
| Control-Shift-A | debug all critical tiles |
| Control-Shift-B | dump an ASCII graphic of the tile map |
| Control-Shift-D | debug dump |
| Control-Shift-F | free memory by clearing a tab. |
| Control-Shift-I | toggle info click mode |
| Control-Shift-L | restart lazy crawl |
| Control-Shift-M | fix mouseout |
| Control-Shift-O | toggle orientation (portrait/landscape) |
| Control-Shift-P | debug tiles in pool order |
| Control-Shift-R | reset visible rect |
| Control-Shift-T | debug given list of tiles separated by space |
| Control-Shift-Z | set zoom level to 1 |