Hi,
I just found this very handy Internet Suite from Mozilla.
http://www.mozilla.org/projects/seamonkey/
It's called SeaMonkey and the official description is:
Web-browser, advanced e-mail and newsgroup client, IRC chat client, and HTML editing made simple -- all your Internet needs in one application.
Looks like it could be pretty handy as a PortableApp 
Visit the Community page
Join our forums
Subscribe to our email newsletter
Subscribe with RSS
Follow us on Facebook
Follow us on LinkedIn
Follow us on Twitter
Follow us on Mastodon
Follow us on BlueSky
https://portableapps.com/node/800
Sea Monkey Is not open source
Where'd you hear that?
Download and run the installer. Scroll through the license; from what I can tell that's open source.
~nm35
a.k.a. Mark
Someone told me that.... Also because I tried to make it Portable, and it did not work. (You can try yourself, Maby you can)
NSIS might be able to wrap AppData settings over to the drive... Worth a try.
Just 'cause you can't make it portable doesn't mean it isn't open source.
~nm35
a.k.a. Mark