Firefox 社群討論區

Running v150.0.3 on a Windows 10 PC. I have (HAD) 5 windows open with about a dozen tabs in each one. Just realized that one of the windows is gone! Every time I startup Firefox, I always allow it to automatically update the version. I have a bad feeling this missing window issue happened during the most recent update (last week?).

Has anyone ever experienced this issue or have any ideas how this could have happened? Any chance of recovering that window? I have weekly backups of the SSD containing all my Mozilla files & folders (Firefox and Thunderbird).

Thanks

Locking this thread, please continue here: [/questions/1583232]
GET ME A LIFE PLEASE. DESPERATE. HELP! HELP! HELP! HELP! HELP!

Per Updates critically important open tabs were no longer accessible following the Updates in question. I need to recover the missing activity-chronic or request that the unfinished activity up to the point of Update be retrieved.

Today, after the last update of the software, I lost ALL my tabs (2 years of materials) and there was no way to recover them. Furthermore, I had to spend hours to retrieve at least the most important tabs I use for work.

This is not acceptable, please fix this issue and make the recovery of tabs possible and easy.

I got up this morning and, boom, I am forced update Firefox. Lost everything: history, bookmarks, and passwords. It's suggestions are useless. I have gone to "profiles" (only 2 and none of my information is in either). I am living in Taiwan and half the time the help is in Chinese, which I cannot read. The loss of my information is devastating and I cannot find any real person to help me. There must be a way. Where do I find real help?

What the hell has happened to the support environment? I've tried to resolve two big issues recently, and I can't find anything of value. I've lost the ability to pin an extension to the toolbar after losing my entire profile on this computer, tabs and all, using Tab Manager. I can't find a way to recover the profile, so I've given up on that. Now I can't get my most-used extensions back on the toolbar.

I had a power outage occur recently and when i booted my computer again I found that somehow my Firefox account was disconnected. All of my bookmarks and history gone, but things like accounts and site preferences were kept. The problem is that firefox is not saving my history and bookmarks cannot be made. I have checked common causes for this problems, like not activating sync and turning off "remember history", settings which were set up correctly.

After opening up Firefox to continue work in one of my Saved tab groups, I noticed the 153.0 Update window.

All my saved tab groups have been deleted and the tab group options have been replaced with the new Tab container system in the drop down menu. I even made a new group to test and it saved and was accessible but all the important ones are gone. Nothing in the Json files, tried most of the solutions I've read online. none of these work.

Saved Tab groups don't to sync across devices and are local, so surely they should be saved locally on the system.

After the most recent Firefox update all my bookmarks were scrambled. For example, when I open one marked Bank of America, I get Go Daddy. How do I restore my bookmarks to what they were before the update?

Hi, I realized the other day when I went to use firefox that my bookmarks and history were all missing from firefox. I first tried to see if it was a profile issue like listed here: https://support.mozilla.org/en-US/kb/recover-lost-or-missing-bookmarks but even though it had another profile my history and bookmarks weren't in the other other profile either. Next I tried the next method on the page where it says you can go to manage bookmarks then once in your library you can click restore to fix it but it refuses to bring up any files or folders when I do this. Also the library is totally empty and there's none of the previous shortcuts that show up from your most common pages when you open the new tabs, but when I opened firefox the first time it had the tabs I was previously on when I opened it like the previous session. My computer is very old and sometimes doesn't like to open new applications but a web browser or folder is basic enough that I've never really had issues with it other than slowness.

I apologize for the stupid question and greatly appreciate your patience. Thank you very much for any help in advance.

Noticed the issue yesterday (5/21/2026) . My tabs were not what I had when I closed it the night before but from several hours earlier .

I googled for some help and was told to go , Help>More troubleshooting information> Profile Folder>sessionstore-backups and look for the backup I want , and rename as sessionstore.jsonlz4 (deleting the old one) . That did not work so as a temp fix I am using the session manager extension. 

How to fix this ?

I have been using Mozilla Firefox on my mobile phone or PC since 2015. So, after so long, I found the Gmail that I used to log in to Mozilla from 2015 to 2018. Now, if I log in with that Gmail, will the previous history or data be restored or will it be Mozilla's?

I used Firefox yesterday. My settings are to open Firefox with tabs restored - but all my tabs (as they were yesterday) are missing and when I go to history, the option to restore a recent window is greyed out. The option to restore a previous session doesn't even seem to be there.

I notice in task manager I have 15 firefox tasks. Could my window from yesterday have opened somehow in the background, but not be visible to me anywhere?

Hello, I've got a problem with my account after something log me off the account for no reason then I put in new password and boom nothing my all passwords are gone please these passwords are really important for me, I need them back and I will be thankful if I could get any advice how to get them back because I had something around 100 of them now I got one only one please help me out im freaking out.