Here is what she wrote:
It is fine in quick reply, but everywhere else on Yuku it doesn't work.
What it does is that as I type, the letters all start to overlap one another. So, I can't read it as I am typing. I can't see any typos, etc. It is
only the default font. I don't think that it is anything you can fix as I think it is something with how Yuku is coded. It is Yuku widespread.
Now, this new thing is really weird. I haven't changed anything except for upgrading Firefox. Something must have changed. I need to try and fix this
"bold" issue on my end.

