Nightly Tester Tools is a Firefox extension, can add a few extras useful to those that regularly test nightly builds of Firefox, Thunderbird, Sunbird and Toolkit Seamonkey (Suiterunner). The following is a brief list of the extensions features: Extension compatibility fixing; Titlebar customisation; Build ID retrieval; Screenshots; Breakpad information; Restoring tabs from previous session; and Leak log analysis.

The license of this software is Freeware, you can free download and free use this browser plug-ins software.