! Date
! Notes
|-
| SeaMonkey 2.25
| March 19
| [http://www.seamonkey-project.org/releases/seamonkey2.25/ Release Notes]
|-
| Thunderbird 24.4.0
| March 18
| [https://www.mozilla.org/en-US/thunderbird/24.4.0/releasenotes/ Release Notes]
|-
| Firefox 28.0