something not directly to the Question,
because my hint is for also the need of an Email-programm,
and my solution ist not really a up-to-date one.
Here I'm on a Lappy, single-Celeron at 2200Mhz with original 2GB Ram.
Actually I try to build up upup as a german puppy, upup has the Light-Browser build in.
Light is good, sure, small and quick. Because I'm working long time with puppies,
I like the mozilla-Suite Seamonkey. OK, its a projekt, which seems a little sleeping,
but it brings all build in. Browser, Email and more.
In tests with upup-ef-32bit I had tried the last version of Seamonkey, 2.53.
When starting something in Adobe Flashplayer, in short time is to see:
2.53 brings the lappy in heat ))
So I switched to the Seamonkeyversions backward, and found the 2.49.4,
which runs well, quick, dont take all the power of the Laptop.
A little worst is the skin of Seamonkey - it needs GTK3, I had experimented long time,
until i had build up a additional Gtk3-Theme, so that Seamonkey looks like the
rest of the puppy ( I use a colourful theme, with no additions Seamonkey cames in grey).
The next is, Videos. there are some Vids in Inet, Seamonkey doesn't play,
and there are some, which Seamonkey offers to download instead of play in the site,
you can then play that vids from your harddisc with the Player installed in your puppy.
So if you also need a emailprogramm, take a look to Seamonkey 2.49.4,
in the old forum i remember a Sfs to install / deinstall it on the fly.
Good whiches with your project