[SOLVED] Install multiple versions of Firefox on Ubuntu

• Download desired firefox version here https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/
• Extract it to e.g. /opt/firefox2/

Source: http://www.wikihow.com/Install-multiple-versions-of-Firefox-on-Ubuntu

My collection of cloud IDEs

 

My collection of cloud IDEs (incl. shameless referral links):

• https://codenvy.com/
• https://c9.io/
• https://www.nitrous.io/join/EJBYozfU2po
• https://koding.com/R/russenreaktor

Am I missing one?

[SOLVED] Install jenkins on debian

wget -q -O - http://pkg.jenkins-ci.org/debian/jenkins-ci.org.key | sudo apt-key add -

Then add the following entry in your /etc/apt/sources.list:

deb http://pkg.jenkins-ci.org/debian binary/

Update your local package index, then finally install Jenkins:

sudo apt-get update
sudo apt-get install jenkins

Source: http://pkg.jenkins-ci.org/debian/