Posting New Thread mode: Missing icons in linuxquestions.org webpage

I just installed CentOS7.
When I use Firefox at linuxquestions.org and try to do a post,
the icons above the text editing area, e.g. QUOTE, link, etc...
are now replaced with non-clickable characters in an image icon.


Eg. QUOTE icon will now be "Wrap [QUOTE] tags around selected text".
I do not have such problem with Linux Mint.

Anyone using CentSO7 has this problem?

Sounds like this problem. Appears to be specific to the Firefox version in CentOS 7, with no solution in sight.

@rknichols:

Thank you.

Closing as a dupe, to keep all discussion in the existing thread.

--jeremy