I have the Customize Google extension. Quite a while back I upgraded to a newer version of the extension, and the extension menu now has two copies of it. I tried uninstalling the new one to see if both went away, but it only got rid of the new. The old was still there, but only as a shadow: it was in the list, but the uninstall and options buttons were disabled, as was the context menu. I reinstalled the new version ans let it be for a while.
I tried to get rid of the old one again today. I looked in the extensions folder, but it only seems to have one Customize Google manifest folder.
I recently upgraded to the latest version of firefox and now it says that the old version is disabled because it is obsolete, and gives me the same message for one of the installed themes. In neither case does it allow me to uninstall the obsolete item.
Does anyone know what’s going on here?