Install older version of firefox for SlimerJS

Question

I need some help with installation of firefox older version. Also I have to make it work with SlimerJS npm module. As it says on SlimerJS website it works with versions of firefox from 38.0 to 52.0. So, this is my steps:

1. Download an archive from mozilla cdn

   wget -c https://download-installer.cdn.mozilla.net/pub/firefox/releases/51.0b9/linux-x86_64/en-US/firefox-51.0b9.tar.bz2`
   

2. Extract this archive

   tar xjf firefox-51.0b9.tar.bz2
   

3. Configure SlimerJS as the docs say

   export SLIMERJSLAUNCHER=/usr/bin/firefox
   

4. Run my testing script (just simple console.log("Hello Slimer!");)

   slimerjs test-1.js --debug=true
   

As a result I have this in my terminal:

Error: GDK_BACKEND does not match available displays
Gecko error: it seems /usr/bin/firefox is not compatible with SlimerJS.
See Gecko version compatibility. If version is correct, launch slimerjs
with --debug=true to see Firefox error message

May be I'm doing something wrong? Please help me If someone has an idea. I really want to make this stuff working.

Answer 1

The best solution for same this error :

Error: Platform version '5x.xx' is not compatible with or Gecko error: it seems /usr/bin/firefox is not compatible with SlimerJS.
See Gecko version compatibility. If version is correct, launch slimerjs
with --debug=true to see Firefox error message

is use old firefox version inside your updated firefox:

1. update SlimerJS and make sure this the latest version.

2. Download the mozilla firefox version 50 from : https://ftp.mozilla.org/pub/firefox/releases/50.0/ and choose your OS and i386 or x64 and favorite lang for example i download https://ftp.mozilla.org/pub/firefox/releases/50.0/linux-x86_64/en-US/firefox-50.0.tar.bz2 for Ubuntu 16.04 64bit

3. then extract the downloaded file:

   $ tar xvjf firefox-50.0.tar.bz2

for example i extract into /home/username/oldmozilla

4. set extracted directory to SLIMERJSLAUNCHER path:

   $ export SLIMERJSLAUNCHER=/home/yourname/oldmozilla/firefox/firefox

note: you must give firefox app not directory

5. run your js app simply ; )