Bug#842952: firefox: Things that are still bad with GTK+3 enabled

[George B.]

Package: firefox
Version: 49.0-5
Followup-For: Bug #842952

> 1) Parts of the UI have gained ugly heavy black borders.  This seems to
> be fixed upstream for a future release:
> https://bug98304.bugzilla.mozilla.org/show_bug.cgi?id=1266914

I was able to work around this issue by adding the following to
~/.config/gtk-3.0/gtk.css (taken from the bug you mentioned):

```
frame { border-color: #a2a2a1; }
separator { color: #a2a2a1; }
```


Best regards,

George