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.7tutorials.com/4-ways-boot-safe-mode-windows-10

You can remove all data stored in Firefox for a specific domain via "Forget About This Site" in the right-click context menu of an history entry ("History -> Show All History" or "View -> Sidebar -> History").

Using "Forget About This Site" will remove all data stored in Firefox for this domain like history and cookies and passwords and exceptions and cache, so be cautious. If you have a password or other data for that domain that you do not want to lose then make sure to backup this data or make a note.

You can't recover from this 'forget' unless you have a backup of involved files.

If you revisit a 'forgotten' website then data for that website will be saved once again.

• https://support.mozilla.org/en-US/kb/delete-browsing-search-download-history-firefox

You can try to login to Facebook in a New Private Window.

You can check the Web Console (Tools -> Web Developer) for messages about blocked content and about the presence of mixed or unsafe content.

• https://developer.mozilla.org/en-US/Tools/Web_Console

You can check the Network Monitor to see if content is blocked or otherwise fails to load.

• https://developer.mozilla.org/en-US/Tools/Network_Monitor

If necessary use "Ctrl+F5" or "Ctrl+Shift+R" (Mac: Command+Shift+R) to reload the page and bypass the cache to generate a fresh log.

You can check for issues with location storage (indexedDB).

• https://firefox-storage-test.glitch.me/

It didn't find any issues

Hi cindyt1, numerous users are reporting this issue, but as far as I can tell we haven't tracked down why it affects some people and not others (to learn whether it is a setting problem, data problem, etc.).

Could you test in a Private window: either Ctrl+Shift+p or right-click a link to https://www.facebook.com/ and Open Link in New Private Window. Any difference?

This could be a problem with local storage and possibly running this command in the Web Console to clear storage as posted in bug 1569296 might fix it.

• localStorage.clear()

• "3-bar" menu button or Tools -> Web Developer
• https://developer.mozilla.org/en-US/Tools/Web_Console

• Bug 1569296 - Facebook pages loading blank

(please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html)

Here is what I did that fixed this. First I went to the mobile version of Facebook, m.facebook.com, on my computer not on a mobile device. After I saw that working I used it to log out of my Facebook account. Then I went to the Private Browser Window and opened Facebook there. Then I went back to the main window and clicked on a post link that had previously given me a blank screen. Now it works. Thank you for the suggestion to try the Private Browsing Window. That was easy for me to understand and do.