The two main types of add-ons in Firefox are plugins and extensions. Can you check to see whether Firefox has disabled this add-on?

orange Firefox button or classic Tools menu > Add-ons

You can select the category on the left. On the right, the enabled add-ons are listed first, then the disabled ones. If the add-on can't be enabled, it might need an update from the author.

Any luck?

Actually, you first might check the toolbars list in case it just isn't displayed.

Alt+v (displays classic View menu) > Toolbars

Thank you. Freecorder is a program, which when downloaded sits on the task bar, so is not like an addon.I have checked in add ons and toolbars, nothing. cheers

In order to insert a toolbar into Firefox, Freecorder needs to install a Firefox add-on in addition to its own program.

The standard response from their tech support is to uninstall and reinstall:

I installed freecorder audio 4 but the toolbar doesnt show up not even after enabling add ons

Freecorder Toolbar dissapeared

Without installing it myself, I don't know what else to suggest.

Thank you, that did it. I think I downloaded 5, not realising it was for US, and I also declined one of the add ons. cheers