Report Enpass Extention 6.6.0 thows Error 403 when using Firefox 87.0 in Desktop Posted March 29, 2021 Hi, I recently installed the new Mozilla Firefox 87.0 on Mac OS (Big Sur 11.2.3). While working perfectly on Firefox 78.9.0, the browser extention (6.6.0) throws an "Error 403", pointing out, the installed browser extension seems to be unauthorized. I reinstalled the extention with the same result. Any help or hints on this? Thanks!