These articles describe how to use the debugger.
- Access debugging in add-ons
- Breaking on exceptions
- Debug eval sources
- Disable breakpoints
- Examine, modify, and watch variables
- Highlight and inspect DOM nodes
- Ignore a source
- Open the debugger
- Pretty-print a minified file
- Search
- Set a breakpoint
- Set a conditional breakpoint
- Set watch expressions
- Step through code
- Use a source map
- Use watchpoints