Facebook question on Linux Firefox. When you share from your facebook page.
 

Google can't help on this. Not sure who can help on this Facebook problem. I share a post from my Facebook page to a group but the post arrives in the group no longer having the share button. Has me stumped. I am using Firefox and Fedora 25.

Anybody, knows this or is it normal?

The first thing I would try is disabling all your add-ons, plugins, extensions, etc.

That would be to much trouble every time I want to share.

Thanks for your help anyway.

DaneM is not suggesting you have to do this every time. They are trying to pinpoint exactly what is causing the problem by simplifying the environment in which the problem occurs. For example, if you find that the problem disappears if you disable all your add-ons, plugins, extensions etc. then you know that it is one of those that is causing the problem and therefore you can add them in one by one to see which one is causing the problem.

OK I'll have a go.

First I'll try again with Opera see if it is Firefox causing the problem.

Thanks for that.