Hello, I think that the PKGBUILD of gaim-encryption should be change as this: (i change nss with firefox)

pkgname=gaim-encryption
pkgver=2.36
pkgrel=2
pkgdesc="A Gaim plugin providing transparent RSA encryption using NSS"
url="http://gaim-encryption.sourceforge.net"
depends=('gaim' 'mozilla-firefox')
source=(http://dl.sourceforge.net/sourceforge/$pkgname/$pkgname-$pkgver.tar.gz)
md5sums=('7edf1a08e857faabaed03f77798f88fd')

build() {
cd $startdir/src/$pkgname-$pkgver
./configure --prefix=/usr \
-with-nss-includes=/opt/mozilla/include/firefox-1.0.3/nss \
--with-nss-libs=/opt/mozilla/lib/firefox-1.0.3/ \
--with-nspr-includes=/opt/mozilla/include/firefox-1.0.3/nspr \
--with-nspr-libs=/opt/mozilla/lib/firefox-1.0.3/
make || return 1
make DESTDIR=$startdir/pkg install
}