Some more information: I have tried safe mode and refreshing and updating the browser and none of those helped.

Uninstalled Firefox, deleted folders and reinstalled and that did not fix it.

Sorry, what do you mean by "deleted folders"?

Due to a change in how Firefox 39 associates keywords with bookmarks and/or history, the address bar is newly sensitive to corruption in the database that stores your history and bookmarks (the places.sqlite file). I think this probably is the bug you have seen in other threads.

The developers are working on a solution, but that could take weeks to get to you.

At this point, the easiest workaround is to remove/rename the places.sqlite file, but then you lose all your history, so that's really not very attractive for people who rely on history for revisiting sites.

In case you want to try that:

Open your current Firefox settings (AKA Firefox profile) folder using either

• "3-bar" menu button > "?" button > Troubleshooting Information
• (menu bar) Help > Troubleshooting Information

In the first table on the page, click the "Show Folder" button. This should launch a new window listing various files and folders in Windows Explorer.

Leaving that window open, switch back to Firefox and Exit, either:

• "3-bar" menu button > "power" button
• (menu bar) File > Exit

Pause while Firefox finishes its cleanup, then rename places.sqlite to something like oldplaces.sqlite.

Firefox creates temporary files related to places.sqlite and those may need to be renamed/removed as well. Check for places.sqlite-shm and places.sqlite-wal and either rename or remove them as well.

When you start Firefox back up again, it should start a new places.sqlite database and import your last automatic bookmark backup. Can you confirm that all your bookmarks are present? Does the address bar work normally again?

Hello, Yes doing all that fixes the issue but as you said now I've lost all my history and all my bookmarks are now gone as well. Is there a way to get my bookmarks back at least? What's strange is it kept the folders for my bookmarks but there are no bookmarks there.

Whoa, that's not good. Could you try using the "Restore" feature with an earlier backup? I think Firefox would already have tried your latest backup. This article has the steps: Restore bookmarks from backup or move them to another computer.

If you can't restore a recent bookmarks backup, I suggest "undoing" the previous rename and bringing back the earlier places.sqlite. Then you could make fresh bookmark backups and exports to make sure at least your bookmarks are preserved. These articles have the steps for those two different processes:

• Back up to the JSON format: Restore bookmarks from backup or move them to another computer
• Export to the HTML format: Export Firefox bookmarks to an HTML file to back up or transfer bookmarks

Hi again, Restoring brought my bookmarks all back. Thank you!

What's interesting is prior to doing that I tried to undo the previous rename and was not able to. Renaming the old places.sqlite file back to the proper file name and disabling the new one did not restore the old browser history, though now I have an addition file in the folder named places.sqlite.corrupt and based on the size of the file it seems like that is the original file.

Oh well, it works now and I have my bookmarks. Loss of history isn't the end of the world for me. Thanks!

I have read about a way to extract the salvageable parts of the "corrupt" file, but if you aren't missing your history, it's probably not worth the effort. Should you be curious, this article has the steps: https://developer.mozilla.org/docs/Mozilla/Tech/Places/places.sqlite_Database_Troubleshooting#How_to_%28try_to%29_recover_from_a_corrupt_places.sqlite