Firefox Community Forum

Hello all,

I recently (2 days ago) discovered that my Firefox was broken immediately following a Windows 11 update (2026-01 Preview Update (KB5074105) (26200.7705), in case this means anything to anyone). I first noticed my bookmarks and browsing history were gone (which I noticed a lot of people have already been complaining about recently). I want to start off by EXPLICITLY saying I have tried restarting Firefox, my computer, and following the instructions from the most commonly linked solutions (1 1, 2 2 , 3 3). None of it has many any difference to speak of. Now, onto the diagnosis.

My history is still not being remember or updated. Furthermore, the history management tool (the one that opens up on Ctrl + Shift + O) is completely non-functional. Clicking any button in there does nothing. I have tried to go "Import and Backup -> Restore -> Choose a File", especially because I managed to locate the .jsonlz4 backup files for my bookmarks in the root folder of my (one and only) profile. The history manager does not allow me to open a file, in fact clicking "Choose a File" does not even open a file selection menu. Clicking "Backup" does nothing, clicking "Import Bookmarks from HTML" does nothing. "Views" is also completely empty (which I assume makes sense, given there is no browsing history to speak of).

My only guess is my profile ended up broken somehow? I would guess the Windows update had something to do with it, but the fact that the history is still not being saved 2 days later confuses me greatly. Any help would be much appreciated, thank you in advance.

Why are my 3 rows of Home page tabs now so small? I can go to about:config, search for browser.newtabpage.activity-stream.newtabLayouts.variant-b and change to false and tabs are back to large. However, they soon revert back to very small. How can I keep them large?

Firefox is no longer saving all my history. OR, I can't find it. I can't find it because: HISTORY/SHOW ALL HISTORY is now only showing "today". This occurred with v133, but I do not know if it occurred with any given update. I updated to 134.0.1. That did not fix problem. I have not tried regressing.

In the past, I was able to save YEARS of history (although I sometimes created a new profile to restart the history file due to its size).

1. I was using the "DYNAMIC HISTORY" addon, which worked fine for years. When I found Firefox was showing only the current days' history, I disabled that addon. Didn't fix anything.

2. "Delete cookies and site data when Firefox is closed" option IS NOT SELECTED. NEVER HAS BEEN

3. OTHER SETTINGS: no - Always use private browsing mode yes - Remember browsing and download history yes - Remember search and form history NO - Clear history when Firefox closes

any suggestions or help would be greatly appreciated. I am also baffled: googling this problem comes up empty handed.

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I have always used the option to restore previous tabs on startup. This stopped working a few days ago. After digging into it a bit I discovered that using the ctrl+shfit+q command is the only way to shut down firefox and get my previous session restored after.

I have changed no settings and afaik nothing else has changed. This is wildly inconvenient when just the other day I could close it however I wished and come back the next day to all of my tabs without having to dig it out of the history of closed windows.

Why has this changed and is there any way to restore the previous functionality?

On closing down firefox. My browsing history still remains.I have all the boxes ticked that need to be ticked to perform this.Settings also are all ticked and saved. it was all working fine 2 days ago. came back ontoday and stopped working. can any one help. Also my firefox icon/tile/shortcut in my taskbar has changed from firefox icon to being a white folder with top right coner folded over.Anyone have any ideas whats going on.

Moderator note: This question has been edited to remove an unintended link.

Hello Mozilla,

I am about to trash Firefox ... an app that I have used for years, but in the past few weeks it has become an item of frustration.

I have the lastest version which in itself works great but recently cannot remember settings from session to session. I have reviewed comments on the subject but cannot find a solution.

Help please ... or it will be trashed within the week.

Darryl

w11 on laptop. Cleaned PC using CCleaner. Restarted windows. Launched Firefox and only 1 tab with calendar opened. Went to History but no indication of the previous session available. ?

It's not showing recent activity - only blank grey boxes. And its not showing my things saved in pocket at all even though I've selected in settings to show it.

Im using version - 135.0 (aarch64) - it says its up to date.

There is a session with 15 important tabs. Previously, all 15 tabs were restored when closing and then opening.

But now, when closing and opening, the following happens: 1) The first time you click on Mozilla startup, nothing opens.Clicking again opens the home page.And everything. 2)When you click on launch, the home page opens.And everything.

In both cases, pressing Ctrl+Shift+t restores the previous session with 15 tabs.

The error appeared unexpectedly.There were no critical sorties.Mozilla's version is the latest.Tell me how to fix it.