Mozilla Faces Challenges Launching Firefox 3 Browser

At the designated start time of 10 a.m. Pacific (1 p.m.

Eastern), Mozilla had high hopes of breaking the world record for most downloads in a single day with the launch of Firefox 3. However, as the day progressed, updates were scarce, casting doubt on the success of the event on June 17.

The website fluctuated between being completely inaccessible and only offering the previous version, Firefox 2.

Attempting to use the “Check for Updates” feature within Firefox resulted in an error message stating “AUS: Update XML File Malformed (200),” indicating problems with the XML file that typically provides update details.

An update is expected “shortly,” according to the Mozilla Blog.

They also clarified that the official 24-hour record attempt would start only when the software is officially released, not at the initially planned 10 a.m.

Thanks to everyone who sent in tips!

Update: 3:05 p.m.: Success! Thanks to the efforts of TUAW, which provided the necessary push, the server issues were resolved, and began distributing Firefox 3.


Barbara is a dedicated writer for TUAW, bringing readers the latest insights and updates on all things Apple. With a keen eye for detail and a love for technology, Barbara covers everything from the newest iPhone releases to the latest macOS updates. Her articles are known for their clarity and depth, making complex topics accessible to all. When she’s not writing, Barbara enjoys exploring new features on her Apple Watch and testing out the latest iPad apps.