Firefox Community Forum

I have years of bookmarks that have disappeared and my history is missing. Firefox opens with the tabs that were open when it shut down. I really want my bookmarks back.

I am trying to transfer my "bookmarks" from my old Dell computer to a new H P. If it is possible, this would save me a lot of work because I have a lot of bookmarks on my old dell that I still use. Thank you

When I do this:

Click the menu button Fx89menuButton to open the menu panel. Click Bookmarks and then click the Manage bookmarks bar at the bottom. In the Library window, click the Import and Backup button and then select Restore.

I get a blank slate. No files listed.

When I go into the Profile, I see C:\Users\whatt\AppData\Roaming\Mozilla\Firefox\Profiles\shgdgxn6.default-release-1752271533405\bookmarkbackups

How do I restore bookmarks from that file?

Hi. I have used Firefox for years and had a well-organized set of bookmarks (over 100!) and al my associated passwords saved. I was using them just fine last week but when I launched my computer this week, all were gone. I noticed that a new version of Firefox was installed on the 14th and when I launched on the 15th, nothing was there. Instead, I got the yellow banded message that many users saw saying that bookmarks may not be available. I followed the instructions and tried following several methods to recover my bookmarks but nothing has worked. Can I revert back to a version where my bookmarks exist? This is confusing and aggravating beyond words because all these methods seem to offer slightly different approaches. In addition, the only backup folder I can locate is dated Oct 15th, AFTER the update that wiped out all my bookmarks.

I upgraded to Firefox 143.0.4 and lost all of my Bookmarks. How do I find and reload my Default Profile? Also, I cannot load anything in Firefox I am forced to use Edge which I do not like at all!!!!

I had to replace my hard drive recently, and with it my Firefox install. I managed to transfer everything over to the new install, except for the URLs in Reading List. The extension itself made it over; just not any of the URLs I stored in it.

In theory, I know that I can scrounge through the Firefox install on my old hard drive and grab the necessary files, but I have no idea how I'd go about doing that. I can't rely on folder names, since those are based on extension IDs that are generated when I install the extension, and the files themselves are too opaque to glean anything useful from (Notepad++ didn't turn anything up, so I'm assuming the extension data's compressed).

Other than that, I've tried:

• Running this tool to see if there was anything I could use. There wasn't.
• Trying Load Temporary Add-ons to identify the Add-on I wanted. I accidentally erased my feeds on RSS Feed Reader doing this, so there's another extension whose data I need to restore. (It was fine before I tried Load Temporary Add-ons.)

As of yesterday, Oct. 14, 2025, everything in my Firefox Bookmarks and History is gone. This is the message displayed: "The bookmarks and history system will not be functional because one of Firefox's files is in use by another application. Some security software can cause this problem." I have tried to recover them by different suggested means, but it would appear there is NOTHING to recover. Everything in Bookmarks says EMPTY, and I can no longer save any new Bookmarks, it just not allowed. How and why did this happen, and what am I supposed to do? I had hundreds of things Bookmarked, many of them were important to how I run my business, and now are seemingly all gone. This is very upsetting and would appreciate Mozilla getting this straighten out. I need and explanation and resolution.

Fedora froze and I had to reset my PC. Firefox hat quite a number of tabs open wich are still visible in history Recently closed tabs. When I click there on Reopen all tabs nothing happens.

How do I open all recently closed tabs?