We passed a significant milestone on Wednesday. Mozilla’s installation of the Bugzilla bug-tracking software reached the landmark of bug number 1,000,000.

Our Bugzilla installation has been running since Mozilla started in 1998, and tracked bugs, issues, enhancement requests, work projects and almost any other kind of task, across the whole breadth of Mozilla. There are over a thousand other projects and companies that use Bugzilla, including Yahoo! and Red Hat. At Mozilla, anyone who gets an account can file a bug – that’s part of what it means to be an open, transparent and participatory project. Some of the people who filed the earliest bugs are still involved in the project today, and have amassed quite astounding bug-filing counts. Most of the bugs are now resolved, one way or another, and it’s probably fitting that the oldest open one is a request for an enhancement to Bugzilla itself.

So thanks to all those who have filed, triaged, processed or fixed bugs in our Bugzilla installation over the years, and to all those who have hacked on the software. (Bugzilla the project is very much alive and used widely across the industry; if you want to help, here’s how.) Bugzilla has been an essential tool in making our software as great as it is, and we couldn’t have done it without you.

Here’s to the next 1,000,000!