軟體版本更新為Firefox 3.0.9 中文版，修復了部份安全性與穩定性問題，與cookies丟失、部份webmail無法顯示附加檔等問題，想知道更多更新內容，請到
Firefox 3.0.9 fixes several issues found in Firefox 3.0.8:
- Fixed several security issues.
- Fixed several stability issues.
- Many users experienced an issue where a corrupt local database caused Firefox to “lose” its stored cookies. (bug 470578)
- Fixed an issue where, starting with Firefox 3.0.7, inline image attachments on popular webmail services (like AOL and AIM) would not display. (bug 482659)
- Large forms would sometimes take a long time to submit. (bug 426991)
- In certain cases, new windows would not have proper focus. (bug 446568)
- See the Firefox 3.0.8 release notes for changes in previous releases.
See the complete list of bugs fixed.