Comment # 5 on bug 1091592 from Wolfgang Rosenauer

(In reply to Mircea Kitsune from comment #4)
> So it was a decision by the openSUSE devs to enable it? Good to know. I
> don't believe it was a good one personally, and would be happy if you could
> please consider reverting it: Firefox 60 will come with a way to enable /
> disabled this on demand I understand, which users can surely wait for.

It was enabled for earlier versions already. The thing apparently broke just
for 59 on kwin.
We just enabled what was already in the codebase.
The feature is supposed to detect if a windowmanager (and how far) can work
with CSD.
This won't change in FF 60 in principle.

> Indeed it looks pretty broken as is: Apart from the fact that the window
> doesn't have a title nor borders thus it can't be resized, it visually
> breaks the theme that all other widows have which looks very ugly.

You do not need to argue with us that it's broken.

> I might look for that repository later and consider testing this package: As
> long as it's a safe change and can be easily reverted without breaking
> anything, I do not mind checking it out and letting you know the results I
> get.

The point is you will get FF60 anyway next week when it's released. If you get
it with a bug on kwin or not depends on if you could help testing and we
resolve the issue within the next 5/6 days.