apt-get install alsa-tools-gui

https://bbs.archlinux.org/viewtopic.php?pid=1410917#p1410917

https://sites.google.com/site/wadersrepairs/

http://sea-guide.com/

file --mime-encoding 'ficheiro.ext'

converter de html para pdf:
wkhtmltopdf news_janeiro.html newsletter_1_2017.pdf

converter de pdf para png:
convert -verbose -density 300 -trim newsletter_1_2017.pdf[0] -quality 100 -flatten -sharpen 0x1.0 newsletter_1_2017.png

about:support
Multiprocess Windows

about:config
browser.tabs.remote.autostart | 1
criar - browser.tabs.remote.force-enable | 1
accessibility.force_disabled | 1

http://techdows.com/2016/08/firefox-48-e10s-enabled-or-disabled-if-disa…

como root:
cd /opt
wget https://ftp.mozilla.org/pub/firefox/releases/56.0.2/linux-x86_64/pt-PT/firefox-56.0.2.tar.bz2
tar xjf firefox-56.0.2.tar.bz2
rm firefox-56.0.2.tar.bz2
chown -Rv user:user firefox/
mv /usr/lib/firefox-esr/firefox-esr /usr/lib/firefox-esr/firefox-esr.old
ln -s /opt/firefox/firefox /usr/lib/firefox-esr/firefox-esr


http://libre-software.net/how-to-install-firefox-on-ubuntu-linux-mint/

x86 | como root:
apt-get update
wget https://downloads.pf.itd.nrl.navy.mil/core/packages/4.8/core-gui_4.8-0ubuntu1_trusty_all.deb
wget https://downloads.pf.itd.nrl.navy.mil/core/packages/4.8/core-daemon_4.8-0ubuntu1_trusty_i386.deb
dpkg -i core-gui_4.8-0ubuntu1_trusty_all.deb core-daemon_4.8-0ubuntu1_trusty_i386.deb
apt-get install -f


file --mime-encoding ficheiro

http://ask.xmodulo.com/change-character-encoding-text-file-linux.html