How to use an old version of Firefox with slimerjs

Use old Firefox with slimerjs.md

slimerjs

As of v1.0.0 installed from Homebrew, slimerjs is compatible with Firefox up to version 59.0 only.

These are the instructions for macOS:

1. Download Firefox v59.0.3 disk image.
2. Open the disk image.
3. Drag the "Firefox" app to a folder except the Applications folder.
4. Rename Firefox to "Firefox 59.0.3".
5. Drag Firefox 59.0.3 to Applications.
6. Edit ~/.bash_profile. Add this line:

   export SLIMERJSLAUNCHER=/Applications/Firefox\ 59.0.3.app/Contents/MacOS/firefox
   

These subsequent instructions can be used with all platforms.

1. Start Firefox 59.0.3.
2. The Profile Manager opens. Create a new profile. Make sure that this profile is used when Firefox (v59.0.3) starts.
3. Open Preferences.
4. In "General", scroll down to "Firefox Updates".
5. Turn off automatic updates.

Now you can run slimerjs normally.