Firefox 社群討論區

My profile seems to be corrupted. Starting Firefox with that profile completely crashes the computer, but when I reinstalled Firefox and it started with another profile it was fine. Switching back to my profile immediately crashed the computer. Is there a way to extract the history/bookmarks/passwords/etc. from my profile folder without starting Firefox? Thanks in advance!

This if Firefox 131.0 on MacOS 10.15.7 (Catalina).

Hello, I have just reinstalled Windows on my PC and when I logged into my Firefox account, none of the data I had synced up. I lost all my bookmarks, accounts, logins, etc. Is there any way to get them back?

On 10/5/2024 I suddenly had no access to my saved passwords for websites, all my bookmarks were gone and no autofill works anymore. I have searched and searched for anything relating to these missing saves in password manager, I've used EaseUS, I've tried system restore. It's like my my saves were completely wiped! When I did a system restore, Firefox uninstalled itself completely when it shouldn't have. Now it's like I never had Firefox on this pc and there's no history or anything dated before today 10/6/2024. I've tried import from other browsers and there's nothing there. I'm a bit upset here, is my history, saved passwords, bookmarks and, autofill just gone and irretrievable?

I have hundreds of bookmarks imported from Google Chrome, Safari and Firefox on older computers. Many of the bookmarks are duplicates, and many located in different, misnamed sub-folders should be moved to more relevant folders.

The bookmark manager is not the easiest tool to use for reorganizing bookmarks because the Results Detail section changes its focus each time a bookmark file is dragged to a different folder or sub-folder. This forces the user to bounce back and forth in the Bookmark Manager in attempts to find the sub-folder they cleaning up.

If the contents of the Bookmark Manager could be downloaded as a CSV file or spreadsheet; more query tools could be implemented to reorganize the data. Once that is accomplished; the Bookmark Manager could be purged and the organized data could be reinstalled. That would make the Bookmark Manager operate more efficiently and therefore more quickly.

Note: I always export all bookmarks to backup file and copy that to several safe locations for needed synchronization across different browsers and also restoring them if needed. Problem: I have repeatedly selected all items in Firefox bookmarks sub-folders and then followed by importing html bookmarks thinking that I was updating my bookmarks, so all my browsers had same. Instead, what I find is duplicated sets of bookmarks building up about 10-fold so that now any search for a site yields far too many duplicate listings and it is a mess. How do I prevent this from happening and how do I actually and truly delete all boomkarks in Firefox?

Aside topic: For all the folks who have accidentally lost bookmarks, my experience with losses has lead to always having backup files of bookmarks and backup listings in word or Excel of all my settings and extensions, etc. Automation has advantages, but it introduces new headaches. I can never allow myself to believe that everything will one day be just rosy. Also, multiple different browsers can be very helpful.

When i starup my firefox browser All my bookmarks are gone and i dont know how to retrieve the bookmarks. do i need to setup an firefox account or what should i do? with regards

I have been a firefox user for 5 years now and i gave my laptop to repair and it was fixed with an ssd (HP NVMe SSD) to better performance and more speed and efficiency but in the process he rebooted and restarted the pc and now all my data is not there , i have some very important webpages and bookmarks in my firefox browser, i had signed in synced and done everything so that i get the data if something like this happens , however and only 3 or 4 bookmarks were imported and all the search history is gone and new even though i signed in with all my accounts and synced and tried to get the data , i remember that i did everything properly to sync and store the account data,search history,bookmarks and password s and now i am not able to get it and i tried doing it with all accounts i had logged in firefox.how do i get my search history,bookmarks,saved passwords back please tell?

I reinstalled windows, installed firefox and signed in but my bookmarks (toolbar) have not sync'd, I have bookmarks toolbar set to always show, and my android phone has firefox installed and the bookmarks are there, they just will not sync to my pc, whats up?

Hello,

I accidentally disliked a thought-provoking story which involved the couple who died in the Lisbon funicular crash (as of Saturday 6th September 2025), which I think was addressed by The Independent.

Is it possible to reverse the dislike? The story does not seem to appear again, at least from what I have seen. Although the dislike was accidental, I felt that having the story disliked would indicate I would not be interested in thought-provoking stories about those who have died, even though these stories should be important to show.

I opened firefox profile manager using 'firefox -p' and tried to delete one profile...firefox deleted all profiles except 'default' and 'default-release'...even with them firefox renamed them with some number suffix and created new folders with the same name ('default' and 'default-release')...I have checked /home/ubuntu18/.mozilla/firefox folder...all profiles/folders gone...UPDATE: As I was typing this there was power loss, firefox deleted old 'default' and 'default-release' too...How to get all profiles back?

I updated firefox, and all my addons and sign ins are gone now. Search history and tabs remained intact. It also created a folder on my desktop, but I'm not sure how do I "extract" my old data from it.

Hi everyone...

After I "upgraded" to Windows 11, Firefox suddenly quit working. After reinstalling, it worked again...however, I had to use the "about:profiles" command to restore the bookmarks I had. That worked fine. But after a series of cascading Microsoft 365 app failures, I decided to roll back to Windows 10. Yay! Everything worked again!

Except Firefox.

So, I reinstalled Firefox again. And once again, the bookmarks are missing...but this time, the "about:profiles" command isn't locating what I need.

Any suggestions?

Thanks to a Microsoft update my PC had to have Windows reinstalled causing me to lose all my apps. I have reinstalled Firefox on the PC but of course, all my bookmarks and passwords are missing. I had set up syncing between my PC and my Android mobile devices (phone and tablet). Can I restore or sync from the mobile device back to the PC? I have searched and found nothing. Even when signed into Firefox on the phone, it does not bring up "Sync" when I go to settings. I truly appreciate your help.

Long time user of sync and now totally pissed because I have to discontinue it because I can no longer trust it. It was so useful.

Syncing between mac and windows desktops. On mac suddenly have duplicate folders appear on the bookmark toolbar. Delete the duplicate entries. Later discover that duplicates and original folders have been deleted. Problem compounds when switching to windows to find sync has very helpfully has deleted these folders there too. There was no way to disable syncing to prevent this. So that means when you do something stupid on one instance, you have no way to prevent that mistake from spreading to other computers. Nice one.

No sync-log found on mac to investigate why the folders where duplicated. so no way to file a bug.

All I can do now is disable sync on all computers. Be nice if there was some kind of roll back.

I am signing into my Mozilla account on a new computer with a clean Firefox install. I'm able to get into my account using an authorization code to my email, but Firefox Sync isn't working so no bookmarks/passwords/history/etc. I have a persistent "account disconnected" with a yellow triangle icon. Upon clicking through, I see "Please sign in to reconnect [my email address]" with a sign in button. Signing in does nothing. What's really strange is that my other Mozilla account works fine, which leads me to believe this is an account issue—except that I've synced this account across several devices already.

What do?

Need to install Firefox ESR. If I overwrite my current version of Firefox (115.0.3), will my bookmarks, passwords, and windows and tabs all be saved? Never had an issue before with installing updates . . . but just want to be sure.

Thanks!

OS: Mac OS Mojave (10.14.5)