Firefox ESR + Netflix
 

Does anyone know how to get Netflix working in Firefox ESR? I have read online how to do it with the standard version but not ESR.

It can not be done as far as I know. You need Firefox 49 or newer.
In your case, you will have to install and use Chrome or Chromium.

Further to Alien Bob's post; he offers packages for Chromium, widevine, and pepperflash at his site. You'll be watching netflix in no time. Also if you look in the /extra directory of your Slackware DVD you will find a slackbuild script for Google Chrome.

http://www.slackware.com/~alien/slackbuilds/chromium/

I'll just use the latest Firefox 50. Should I removed ESR version before installing FF 50? Do I need any other dependencies to get it running?

Fire Fox 50 is in the development branch of Slackware(Slackware-current). If you're using ESR that means you're running the stable branch of Slackware. It isn't generally recommended to run -current packages on the stable branch.
A saner approach would be to follow Alien Bob's recommendations. Both Chromium and Chrome run perfectly on Slackware 14.2, and Netflix just works.

Just upgrade. You can use this to get FF50 if you want

https://gist.github.com/ruario/9672798

Nice gem, thanks. I might not have Netflix, but I have an updated Firefox version.

It's possible that this package might help: https://slackbuilds.org/repository/1...tem/hal-flash/ I am going to try it later to get channel 4's 4od service working. Not sure if that's the same problem for Netflix.