Mozilla官方日前又正式釋出了公開版本的Firefox 1.5 RC3，這次的版號是1115 build，RC2是1107build，主要更新部分是自動更新程式相關的bug，建議Firefox用戶更新。根據官方的表示，如果沒有意外，這應該是最後一個1.5正式版前的測試，很快的，Firefox 1.5正式版就會推出了。
如果碰到有擴充套件不相容的，除了更新擴充套件外，也可以安裝Nightly Test tools去強制把不相容的套件設定可運作。
另外，也建議Firefox用戶安裝IE Tab 1.0.6.2擴充套件，這讓你可以瀏覽只能供IE瀏覽器閱讀的頁面（如WindowsUpdate、線上掃毒或一些購物網站），而不需要另開IE的程式。
下載連結：
主要的更新bugs如下：
* A recent regression that either crashes or breaks certain usages of innerHTML for dynamic applications. (315189/315999)
* A recent regression and most common RC2 crash (316025)
1.5的新功能如下：
* Automated update to streamline product upgrades. Notification of an update is more prominent, and updates to Firefox may now be half a megabyte or smaller. Updating extensions has also improved.
* Faster browser navigation with improvements to back and forward button performance.
* Drag and drop reordering for browser tabs.
* Improvements to popup blocking.
* Clear Private Data feature provides an easy way to quickly remove personal data through a menu item or keyboard shortcut.
* Answers.com is added to the search engine list.
* Improvements to product usability including descriptive error pages, redesigned options menu, RSS discovery, and "Safe Mode" experience.
* Better accessibility including support for DHTML accessibility and assistive technologies such as the Window-Eyes 5.5 beta screen reader for Microsoft Windows. Screen readers read aloud all available information in applications and documents or show the information on a Braille display, enabling blind and visually impaired users to use equivalent software functionality as their sighted peers.
* Report a broken Web site wizard to report Web sites that are not working in Firefox.
* Better support for Mac OS X (10.2 and greater) including profile migration from Safari and Mac Internet Explorer.
* New support for Web Standards including SVG, CSS 2 and CSS 3, and JavaScript 1.6.
* Many security enhancements.
* List of notable bug fixes since Firefox 1.5 Beta 2
