Every time I close and re-open firefox, the extensions Ublock Origin and Translate Web Pages become invisible in my tool bar even though they are pinned. The extensions also stop working until I disable and then enable them again, as well as this they also lose all settings I have saved on them. For some reason other extensions such as Youtube enhancer do not do this and work perfectly fine. I have tried looking up the question to find related but not applicable solutions. any help appreciated