Firefox Support Forum

My bookmarks have vanished. This problem began when I had iTunes and Firefox open. My iTunes songs were "skipping," which had never happened before. I closed Firefox and iTunes, and I ran my Piriform CCleaner program to clear out temporary files, which I do regularly.

I ended up updating iTunes to make it work, but not before my bookmarks disappeared with the message on my browser: "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."

Worse, Firefox won't allow me to add new bookmarks.

I followed all topics in support and nothing has changed this problem. I've restarted and shut down the computer. I ran a full-system security scan. I even uninstalled and reinstalled Firefox.

Please help!

All of my saved logins are gone without a trace from all of my devices. I haven't added any new device and haven't changed sync settings recently, haven't even added any new plugins. They were all present a day or two ago and I noticed something was wrong when firefox stopped autofilling the login data. is there a way to check what's going on and what caused this? and also how to I get them back?

As above. FF installed the update despite the checked option to NOT install automatically. NO "old firefox" folder was created-anywhere. No other profile is present that has the old data. My adult daughter's grad school laptop. Years of bookmarks, logins and I do not know what all ARE GONE!! I allowed FF to download but NOT INSTALL-since it was not my machine and I wanted to avert any disaster (I, in fact, looked at the options first, to make sure) NOW WHAT?? Is that is a bug?? Why was there no "old FF" created? Why did it install regardless of instructions to the contrary. Is there some other place to look? She does not seem to have any automatic backups for FF profiles.

since after Firefox 59. All my existing passwords have gone awol (settings passwords blank) and no new passwords are being prompted to be added even if I enter them in websites. (also wierdly since 59.01 it keeps a restart message in the help even though i have updated

Just noticed everything is gone.....nothing shows. I'm using ver 63.0.3. Not sure if it is the result of a Firefox update. I last checked the passwords approx 7 days ago. I have an old firefox data file dated 2-18 on my desktop.

can I pull them out of old file?

For a really long time I've been using an older version of Firefox (47.0b9, to be precise) because I didn't like the following updates. A week ago I noticed some problems with one website I was using and so thought that maybe it's because I was using outdated browser or something like that. To check this out I updated Firefox to newest (in that moment) version of it, but it wasn't the case, and because I didn't like the changes made to interface and other things I immediately downgraded it back to the version I was using earlier. But then I realized that all my browser history was gone.

I spent last week trying to undo or repair it, and so I found out that my browser history was still there, untouched, but for some reason older Firefox could not "see" it. After updating again to the newest version browser history was back and it showed again.

I tried many things, like System Restore or Firefox Sync, to somehow get the history back in the older version, but it just didn't work.

The thing is, while the history doesn't appear in version 47.0b9, the last session - tabs that I had opened - still showed, and when clicking on "History" button, before going into History window, there was a list of recently visited websites, and the last sites I visited before that whole situation were truly there, so I presume it has to have access to files that contain my browser history.

I am aware that there are supposedly some safety risks that come with using older version of Firefox, but I didn't experience any problems during my long usage of it so I don't see an issue.

I really need my browser history to work again in older version of Firefox, and not only because I don't like how newest version looks, but because of how search bar was changed (that is most crucial to me when it comes to this topic) and the fact that after upgrading the browser it started to work slower than before for some reason, which is quite jarring. Some other applications also started working slower, but it isn't as important as the browser.

I also tried slightly newer version of Firefox, but it seems that anything below 55 doesn't work. I think I've read somewhere that in version 55 any downgrade below started to not be supported anymore.

I'm sure there were some changes made to files that contain browser history and things related to it over the course of time. I think that "places.sqlite" file was actually five times bigger after updating to newest version, but I don't know why is that, I'm not really knowledgeable in that field.

But I wonder if there is anything I can do to make it work again in older version, specifically 47.0b9.

Thank you in advance for any help.

I updated Firefox last night right before bed, to version 65.0.1. I did not go to any websites after that. This morning, none of my browser history from before today, 2/14, exists any longer. I first noticed this when typing in a website I check daily, but I didn't have any autocomplete suggestions (normally I just type the first 2 letters and get a suggestion of the full site and I am able to just hit enter to go there). Just now, I checked my history folder to find a site I have not visited in the last few months, but with no history before yesterday, I am not sure how to proceed. I believe my bookmarks are intact (I do not typically use bookmarks, but there are a handful present, and I did not create them today, so I believe they are from before last night's update).

I do use an add-on to record my open tabs, and it someone does go back longer than this, so maybe I can find some of the sites I used to have. However, I could really use the history feature, I have some stuff last summer I would like consult ASAP. I can verify that I have not manually erased my history, at least not going back before something I viewed within a given hour (I don't go back and erase things from say, yesterday, last week, last month, last year, etc). Any thoughts?

I was browsing win Firefox when suddenly Firefox was wiped off my Windows PC. Now, in uploading new version my history and preferences cannot be restored. They are not in an Old Firefox folder. I am furious. What caused this? What to I do?

I've been using Firefox a long time. Never any problem until immediately after the last automatic update procedure today. Now the application will not load. Instead, I only get an error message "Profile Missing..." (see attached screen shot) I tried downloading the latest version from Mozilla and re-installing. It did not resolve the issue. I still got the same error message.

Computer info: Apple Mac Pro 2009 running OS 10.11.6 El Capitan.

When firefox asked if I wanted to update to the newest version, I answered NO! I had already discovered on my other computer that if I allowed the update, I would lose my ability to restore the previous session, so I wanted to save the tabs so I could reload them. I also lost all of the saved passwords on my other computer and didn't want the same thing to happen on my work computer. But despite answering NO. Firefox updated anyway, and I have lost days of work. How do I get it back? Jack

I cannot find an old Firefox folder. I have looked in profile and found 2 logins.json files, dated 21.03 & 09.03, the earlier says corrupt, have copied both together with the sqlite file. How do I open these files to check them ? Tried Firefox in Safe Mode, still no logins. Help would be appreciated, thank you

I have firefox sync set up, but I ask it not to sync logins. Recently, one of my profiles had an issue with sync and it asked me to reconnect. After reconnecting it cleared all my saved logins. I have a backup of `logins.json` but how can i restore it so i have the old and new logins?

Thanks, Jayen

I followed your instructions because you said I was too slow and now over half my bookmarks are missing and they are no longer in the order that I had them in. I had some things setup on my toolbar that are no longer there. It isn't any faster and I want my stuff back! I have a folder on my desktop that has all my backed up things, but no instructions as to how to go back. I will probably never install another update again!

Turned on Firefox after a week off and saw a blank browser - the menu, bookmarks and apps all gone. This isn't the first time Firefox has 'fixed' things and made them worse! This time though I am totally fed up with it and gone over to Opera - which appears to work quickly and consistently. The benefits I had with Firefox have gradually been eroded by updates so now FF just isn't worth the trouble.

I have used FF since its early days but now it appears that the king is senile and no longer fit to rule - there are many 'princes' waiting to take its place.

How do i get bookmarks back when update has deleted all of them,and how do i get f.f-homepage to work as my default startpage as before with search function

Since the update(downdate) all my bookmarks has disappeared collected over years, and alot of them important 4 work,all add-ons has also disappeared, and the f.f homepage is now just a blank page without any search-box!! HOW DO I FIX THIS???

I need to get back my save logins! And it says to reset my password I will lose everything!! How can this happen? I can not find anywhere were I can contact anyone! HELP!!

'my computer crashes (defective hard drive); I lost all my favorites! CAN I RECUPERER ??? How??? in advance thank you for reply.... with solution...!! ' 12juillet2020