PC Arbeit :
user_pref("config.trim_on_minimize", true);
user_pref("ui.submenuDelay", "0");
Cf. http://www.makeuseof.com/tag/top-5-aboutconfig-hacks-firefox-browsing-smoother/
PC Arbeit : ports を backup する。できたファイルは、pkg_add できる。
# /usr/sbin/pkg_create -vb zenity-2.28.0_1 zenity-2.28.0_1.tbz
version up したい version で CONFLICTS が指定されている。
# portupgrade -o www/firefox /var/db/pkg/firefox-3.5.9,1
---> Upgrading 'firefox-3.5.9,1' to 'firefox-3.6.3,1' (www/firefox)
---> Building '/usr/ports/www/firefox'
===> Cleaning for firefox-3.6.3,1
===> firefox-3.6.3,1 conflicts with installed package(s):
firefox-3.5.9,1
They install files into the same place.
Please remove them first with pkg_delete(1).
*** Error code 1
Stop in /usr/ports/www/firefox.
*** Error code 1
Stop in /usr/ports/www/firefox.
** Command failed [exit code 1]: /usr/bin/script -qa /tmp/portupgrade20100514-9307-5ix0hw3-0 env UPGRADE_TOOL=portupgrade UPGRADE_PORT=firefox-3.5.9,1 UPGRADE_PORT_VER=3.5.9,1 make
** Fix the problem and try again.
** Listing the failed packages (-:ignored / *:skipped / !:failed)
! www/firefox (firefox-3.5.9,1) (unknown build error)
CONFLICTS を無効にする。
portupgrade -m-DDISABLE_CONFLICTS -o www/firefox firefox-3.5.9,1