Download Firebug 53

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Download Description

Extensions > Firebug

If you are a developer then you'll find this tool extremely useful.You can edit/debug html,css and Javascript while you browse online.

This tools will allow you to:

  • Debug and profile JavaScript
  • Monitor network activity
  • Visualize CSS metrics
  • Tweak CSS to perfection
  • Quickly find errors
  • Execute JavaScript on the fly
  • And much more.....