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Tag: v3.4

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Nightly Tester Tools

Nightly Tester Tools is an addon for aiding testers of nightly builds of Mozilla apps like Firefox and Thunderbird. Some features are:

  • Extension compatibility fixing
  • Titlebar customization
  • Build ID retrieval
  • Copy extension list to clipboard
  • Screenshots
  • Open Profile Folder


You can install the latest stable NTT from To install for development, clone the repo:

git clone git://

then add a file titled '{8620c15f-30dc-4dba-a131-7c5d20cf4a29}' to the "extensions" directory in your profile folder with the text:


or whatever the path to your nightlytt folder is.

To package the extension into an xpi for distribution simply ant and the default dev script/target will be invoked:


You can override the build number used in the filename:

ant -Dbuild.number=1

To build for release (no build number in filename):

ant release


All bugs are reported to the Nightly Tester Tools component at bug list, file a bug. Check out the wiki for a list of current and proposed features and feel free to file bugs and submit patches.

Related Add-ons:

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