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Facebook not work with Firefox on MacOs 11.4

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  • Last reply by cor-el

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In using FireFox on my 27" iMac running MacOs 11.4 Facebook is not working. If I click on the Account - Nothing happens, Click on Massages - I get a black screen, Clicking on Notifications - I get a Black screen. In fact if i click on the following I also get a black screen Groups, Pages, marketplace and watch.

I did a reinstall, and I get the same issues. I am thinking of doing a complete un-install and then re-install to see if that works.

I did do a backup of my bookmarks, but what about my save passwords and stuff, I need to look at how to save them as well.

In using FireFox on my 27" iMac running MacOs 11.4 Facebook is not working. If I click on the Account - Nothing happens, Click on Massages - I get a black screen, Clicking on Notifications - I get a Black screen. In fact if i click on the following I also get a black screen Groups, Pages, marketplace and watch. I did a reinstall, and I get the same issues. I am thinking of doing a complete un-install and then re-install to see if that works. I did do a backup of my bookmarks, but what about my save passwords and stuff, I need to look at how to save them as well.

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You can copy/backup certain files with Firefox closed in the current profile folder.

You can use the button on the "Help -> More Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.


  • bookmarks and history: places.sqlite
  • favicons: favicons.sqlite
  • bookmark backups: compressed .jsonlz4 JSON backups in the bookmarkbackups folder
  • cookies.sqlite for the Cookies
  • formhistory.sqlite for saved autocomplete Form Data
  • logins.json (encrypted logins;32+) and key4.db (decryption key;58+) for Passwords saved in the Password Manager
    key3.db support ended in 73+; to use key3.db in 58-72, make sure to remove key4.db
  • cert9.db (58+) for (intermediate) certificates stored in the Certificate Manager
  • persdict.dat for words added to the spell checker dictionary
  • permissions.sqlite for Permissions and possibly content-prefs.sqlite for other website specific data (Site Preferences)
  • sessionstore.jsonlz4 for open tabs and pinned tabs (see also the sessionstore-backups folder)