Which web browser had its 1.0 release on November 9, 2004?

Which web browser had its 1.0 release on November 9, 2004? Firefox did.

Firefox began in 2002 as an experimental branch of Mozilla's larger browser suite, originally called Phoenix. A trademark conflict led to the temporary name Firebird, before the project became Mozilla Firefox in February 2004. Its standalone design aimed to offer a faster, safer alternative to Microsoft's dominant Internet Explorer.

Firefox 1.0 launched with features that later became standard expectations, including tabbed browsing, an integrated pop-up blocker, and an extension system. It quickly attracted users who wanted more control and stronger support for web standards. The browser was open-source and developed by the Mozilla community rather than tied to a single proprietary operating system.

A common mix-up is confusing Firefox's 2004 1.0 launch with earlier preview releases or with Mozilla, the broader software project. Firefox is the browser's name; Mozilla is the organization and the earlier application suite from which it grew.