This is necessary for seamonkey-2 p.mask removal Reproducible: Always Steps to Reproduce:
Created attachment 215934 [details, diff] xiphos-3.1.1.ebuild.patch possible patch
This now becomes even more urgent. Upstream officially discontinued seamonkey-1 and also wrote about known unfixed security vulnerabilities. See this news post for reference: http://www.seamonkey-project.org/news#2010-03-16
Fixed in 3.1.2