Latest December 20 2016
Adobe announced on August 31 2016 that the NPAPI Flash version for Linux (which allows the Flash Player to be installed as a plugin in many browsers) will once more be updated to be in sync with the Windows and Mac versions.
This means that you can visit https://get.adobe.com/flashplayer/otherversions/ and download the Flash Player NPAPI for use with plugin based browsers like Mozilla Firefox.
You can also use Google Chrome for Linux which has the builtin Flash Player.
2015 : Using Adobe Connect for Linux
With Adobe Connect 9.5 to be used by ICANN late October 2015, There is this note in the upgrade checklist for 9.5 :
Due to the new Flash Player minimum version of 13.0, Linux users will need to use the Chrome browser to log in to the Connect Web application and join Connect sessions.
Using Mozilla Firefox with the older Adobe Flash Player will not work.
INSTALLING GOOGLE-CHROME
For Debian 7.5, Ubuntu 12.04 and Ubuntu 14.04:
NOTE: These versions ship with the "Chromium" browser. No test with this browser has been successful.
Google-Chrome installation is best done using the terminal and command lines.
On Debian 7.5, the terminal is available from: Applications => Accessories => Terminal
On Ubuntu, the terminal can be found by double-clicking the "DASH HOME" icon (top icon on the left side of the screen) and searching for "terminal".
First, download the browser:
wget -c https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
Installation is done in two steps:
sudo dpkg -i google-chrome-*.deb
sudo apt-get install -f
For CentOS 6.5, Fedora 19 and Fedora 20
This installation is best done using the terminal and command lines.
The terminal is available from Applications => Accessories => Terminal for a GNOME desktop
Or System => Terminal for a KDE desktop.
Log in as 'root'
The installation involves, first, adding google-chrome to the yum repository. To do this, make a text file in /etc/yum.repos.d/google-chrome.repo. Put the following text in that file:
[google-chrome]
name=google-chrome
baseurl=http://dl.google.com/linux/chrome/rpm/stable/x86_64
enabled=1
gpgcheck=1
gpgkey=https://dl-ssl.google.com/linux/linux-signing-key.pub
Google-Chrome can now be installed with:
yum -y install google-chrome-stable
NOTE: Google-Chrome WILL NOT run from the 'root' user. Only a non-root user can use this browser.
For Mageia 4
Google-Chrome installation is done as the root user. Since root login cannot be done from the login page, log in as another user, start a terminal, and log in as root from there:
su root
Set up Mageia's software repository list to pick up google-chrome:
urpmi.addmedia –upate chrome_x86_64 http://dl.google.com/linux/chrome/stable/x86_64
Next, pull in the signing key:
rpm –import https://dl.google.com/linux/linux-signing-key.pub
And do the install:
urpmi google-chrome-stable.
Again, Google-Chrome will not run from the root user. Only a non-root user can use this browser.
Adobe Connect on Firefox
Debian systems, like Ubuntu comes with Firefox by default. However you may get a static "connecting" info when trying to join a meeting on AC.
Follow the url below to fix this problem: http://blogs.adobe.com/connectsupport/meeting-fails-to-load-in-firefox-under-ubuntu-linux/
Mic not working on Adobe connect
If your Mic is not working on Ubuntu system, the procedure below was a fix that worked for me (running Ubuntu 12.04)
Open terminal(Ctrl+Alt+T) and run the gstreamer-properties.
Change the settings under Default Input to the below screenshot.
Close the interface and your MIC should be working.
NB: This fix also works if you are having problem with Skype mic