! Date
! Notes
|-
| SeaMonkey 2.24
| February 6
| [http://www.seamonkey-project.org/releases/seamonkey2.24/ Release Notes]
|-
| Thunderbird 24.3.0
| February 4
| [https://www.mozilla.org/en-US/thunderbird/24.3.0/releasenotes/ Release Notes]
|-
| Firefox 27.0