Hi, there may be several problems first of all to access the content, you must modify the access rights as follows : https://support.mozilla.org/en-US/kb/content-blocking if your bookmarks are missing, you can find them as follows https://support.mozilla.org/en-US/kb/recover-lost-or-missing-bookmarks

It is possible that your firewall or other security software blocks or restricts Firefox without informing you, possibly after detecting changes (update) to the Firefox application. Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full, unrestricted, access for Firefox and the plugin-container process and the updater process. See: *https://support.mozilla.org/en-US/kb/server-not-found-connection-problem *https://support.mozilla.org/en-US/kb/Firewalls *https://support.mozilla.org/en-US/kb/fix-problems-connecting-websites-after-updating ---- Try to start Firefox in <u>Safe Mode</u> to see if that works. *Windows: hold down the Shift key while starting Firefox *Mac: hold down the Options key while starting Firefox *https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode