I get this warning when starting TB: Warning: reference to undefined property this.installDate Source File: resource://gre/components/nsUpdateService.js Line: 1588 The code at that place says: // Set the initial value with the current time when it doesn't already have a // value or the value is already set to 0 (bug 316328). if (!this.installDate && this.installDate != 0) this.installDate = (new Date()).getTime(); Should the condition be: "if (("installDate" in this) || this.installDate == 0)" ? Or is it some other problem?
This code has been rewritten. If you can still reproduce using nightly please reopen.