Dave Yeo released refreshed version of Seamonkey and Thunderbird for OS/2 based on the Firefox 31 ESR code base. The first product from the ESR 31 branch was the Firefox 31 ESR release, thus all that was said there applies to Seamonkey and Thunderbird as well. They also share the same runtime dlls, in case not present download the runtime dll package below.
- Seamonkey 2.2.8
- Thunderbird 31.8.0
- Lightning 3.3.8 (calendar add-on for Thunderbird and Seamonkey)
- Firefox/Seamonkey/Thunderbird 31 ESR Runtime dlls zip package