User.js causing firefox to open two windows

[g4jc]

Using the user.js from latest git, I am getting two firefox windows each time I start firefox. Removing the user.js solves the situation.

I've tested this on two separate computers with a clean install of Firefox.

[nodiscc]

#288
#292

https://github.com/pyllyukko/user.js#known-problems-and-limitations:

Clearing open windows on Firefox exit causes 2 windows to open when Firefox starts
https://bugzilla.mozilla.org/show_bug.cgi?id=1334945

Set privacy.clearOnShutdown.openWindows to false

[pyllyukko]

Yep. Firefox bug ☹️