Comment 5 for bug 888662

Axel Beckert wrote:
> It actually is a good _idea_, just not a very realistic one. :-(

Stallman once wanted to create a free software operating system.
Many would say that it is not a very realistic idea.

Many maybe would say the XDG standard was a good idea, but not a very realistic one.
Now plenty of applications save under ~/.config/

If there is a will, there is a way.
For starters, browsers which share the same cache format could have their directories symlinked.