# Run Cisco Webex on 64-bit Ubuntu 16.04

**With Audio and Screen Sharing Enabled**

### Enable support for 32-bit executables

Add the `i386` architecture to the list of `dpkg` architectures :

~~~
sudo dpkg --add-architecture i386
~~~

Install the libraries required to execute ELF-32 executables:

~~~
sudo apt-get update
sudo apt-get install libc6:i386 libncurses5:i386 libstdc++6:i386
~~~

### Install Firefox 52 ESR (32-bit)

Beginning with Firefox 52 (released March 2017), plug-in support is limited to
Adobe Flash, and drops support for NPAPI, impacting plugins for Java,
Silverlight, and other similar NPAPI based plugins. Hence you need the ESR
release. You can read more on that here:
https://www.java.com/en/download/help/firefox_java.xml

Download Firefox ESR for Linux (32-bit) from
[here](https://www.mozilla.org/en-US/firefox/organizations/all/).

Unpack it to somewhere, for example to `/opt/webex/`:

~~~
sudo mkdir -p /opt/webex/
sudo tar -xjvf firefox*esr*.tar.bz2 -C /opt/webex/
~~~

Install the libraries required for Firefox (i386) to run smoothly:

~~~
sudo apt-get install \
    libgtk-3-0:i386 \
    libasound2:i386 \
    libdbus-glib-1-2:i386 \
    libxt6:i386 \
    libxtst6:i386 \
    libcanberra-gtk-module:i386 \
    libcanberra-gtk-3-module:i386 \
    topmenu-gtk3:i386
~~~

### Install 32-bit JRE

Download Oracle JRE for Linux (a tar.gz archive for x86 architecture) from
[here](http://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html).

Unpack it to `/opt/webex/`:

~~~
sudo tar -xzvf jre*linux-i586.tar.gz -C /opt/webex/
sudo mv /opt/webex/jre* /opt/webex/jre
~~~

### Enable Java support in Firefox

Create symbolic links for the Java browser plugin libraries:

~~~
sudo mkdir /opt/webex/firefox/plugins/
ln -s \
    /opt/webex/jre/lib/i386/libawt.so \
    /opt/webex/jre/lib/i386/libjawt.so \
    /opt/webex/jre/lib/i386/libnpjp2.so \
    /opt/webex/firefox/plugins
~~~

### Install the libraries required for Webex to run

~~~
sudo apt-get install \
    libpangoxft-1.0-0:i386 \
    libxft2:i386 \
    libpangox-1.0-0:i386 \
    libxmu6:i386 \
    libxv1:i386 \
    libasound2-plugins:i386
~~~

### Create a Firefox launch script

~~~
cat << 'EOF' | sudo tee /opt/webex/firefox.sh
#!/bin/bash

export ENV_HOME=/opt/webex
export FIREFOX_HOME=$ENV_HOME/firefox
export MOZ_PLUGIN_PATH=$ENV_HOME/firefox/plugins
export JAVA_HOME=$ENV_HOME/jre
export PATH=$JAVA_HOME/bin:$PATH

#export JPI_PLUGIN2_DEBUG=1

$FIREFOX_HOME/firefox --no-remote -P
EOF
~~~

This script will start a new instance of Firefox with the ProfileManager.
Choose an existing Firefox profile or create a new one.

You might want to specify a specific profile to start with. Just add the
profile name after the `-P` flag.

Don't forget to make the script executable:

~~~
sudo chmod a+x /opt/webex/firefox.sh
~~~

You might want to create a symlink, like this:

~~~
sudo ln -s /opt/webex/firefox.sh /usr/local/bin/firefox-i386
~~~

### Start a Webex session

Launch the script and join a Webex session.

If webex.com sends you a `jnlp` file and Firefox asks what to do with it, just
download it. Further, in the Firefox Preferences > Applications, set the action
for JNLP files: they should be opened with `javaws` (Java Web Start) which can
be found here:

~~~
/opt/webex/jre/bin/javaws
~~~

### (Optional) Install the missing libraries required by Webex

Find out what required libraries are be missing (note that the session number
may be different):

~~~
ldd ~/.webex/T30_MC/*.so | grep "not found"
~~~

You can use http://packages.ubuntu.com/ to find out which packages contain the
libraries.

It is OK to have `libjawt.so` being not found.