I have firefox set as my default browser in ubuntu hardy heron.  However when
webhttrack starts up, it starts up Opera, which I installed some time ago to
test how a site displays and never uninstalled. When webhttrack starts up, it
tells me that it's launching the "regular" browser, which is not correct:

jamkomo@Karnak:~/map$ /usr/bin/webhttrack(20527): launching
/usr/bin/x-www-browser
/usr/bin/webhttrack(20527): spawning regular browser..
opera: X Shared memory extension is not available. ZPixmap not supported
/usr/bin/webhttrack(20527): browser exited
/usr/bin/webhttrack: line 154: 20542 Killed                 
${BINPATH}/htsserver "${DISTPATH}/" path "${HOME}/websites" lang "${LANGN}"
$@