Hi You might find the answer to this earlier support question might resolve this: https://support.mozilla.org/en-US/kb/mozilla-support-rules-guidelines#w_language-and-conduct Does this help?

You can check for problems with the <b>places.sqlite</b> file (bookmarks and history) in the Firefox profile folder. *use the "Places Database" -> "Verify Integrity" button in "Help -> More Troubleshooting Information" (about:support) If errors are reported with "Verify Integrity", close and restart Firefox or reboot the computer and retry. See also: *https://support.mozilla.org/en-US/kb/fix-bookmarks-and-history-will-not-be-functional You can use the button in "Help -> More Troubleshooting Information" (about:support) to go to the current Firefox profile folder or use the <b>about:profiles</b> page (Root directory). *Help -> More Troubleshooting Information -> Profile Folder/Directory:<br>Windows: Open Folder; Linux: Open Directory; Mac: Show in Finder *https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data ---- Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems. *https://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/ *[https://www.digitalcitizen.life/4-ways-boot-safe-mode-windows-10/]