Launcher doesn't kill Firefox 68

Firefox : v68.0.1 OS : Window7 and Windows 10 Karma : v1.7.1 || v3.1.4 || 4.2.0 Firefox launcher : v1.1.0 Node.js : v8 || v10

Launcher doesn’t kill my Firefox 68, I tested with several version of nodejs without success. Maybe it’s cause of Electrolyse (e10s) maybe not. I tried to disable e10s for a moment with set MOZ_FORCE_DISABLE_E10S variable but unsuccessful, I created a little standalone code to test.

const spawn = require('child_process').spawn;
let firefox = spawn("pathToFirefox\\firefox.exe, [
    "http://localhost:9876/?id=anid",
    "-profile",
    "C:\\temp\karma-2456",
    "-no-remote",
    "-wait-for-browser"
]);
setTimeout(function killFirefox(){
    firefox.kill();
}, 10000)
firefox.on('exit', function(code, signal){
    console.log('Firefox exit');
});

Result: firefox is always running.

I tried with this version How to kill child processes that spawn their own child processes in Node.js but it doesn’t work for me.

has anybody an idea ?

[birtles]

@dotnetCarpenter It looks like the fix for this is finally released!

[birtles]

Switching to Nightly (70.0) I can reproduce the problem and the changes in the kill-browser-process branch seem to fix it for me. If someone else can confirm that would be helpful.

I suspect what was happening with 69 is I triggered an error condition where the launcher process was disabled.

Unfortunately I still don’t have a good idea how to fix WSL.