Hv3 is an interesting project, but by far not as powerful
as K-Meleon yet. It may be usable for browsing without scripts
enabled, but still has much too many error messages, when
ECMA-script is enabled, which should deliver the functions of
javascript.
What is the Linux distro that you use currently ?
When used as a live system in ram, as it is the case in
Slax usually, which I remember having been used by you, there is a
minimal amount of ram useful, because all K-Meleons need some ram then,
although less then Firefox.
Using a different, slim window manager instead of the default KDE
would reduce the necessary ram used before the browser is even started.
Possible would be Icewm of Openbox with the Lxpanel.
Installing Slax on the computer would also help, but adding
a user with no administrator rights would be mandatory, and
this is also advisable even when using Slax as a live distro.
I have described in detail how to add a simple user in Slax
in an earlier post. here :
http://kmeleonbrowser.org/forum/read.php?1,93529,93746#msg-93746
Regards
Fred