I need the SQLite Manager add-on but I have not been able to install any add-ons using MAC F6 and F7. From the portal I get "There was an error installing *." If I download the add-on directly from the site tied to the add-on and then install, Firefox says it was unable to edit the necessary files. I have tried shutting down FF and deleting the extension files. I only found the following 3- extensions.ini extensions.sqlite (despite the unsuccessful SQLite Instal) extensions.sqlite-journal And deleting pluginreg.dat I also tried shortening the path of the downloaded plugin by moving it to the desktop and shortening the files name. I currently have zero add-ons