I-Firefox Community Forum

I have used the OneTab browser extension for years. Mac computer ran out of space but was completely backed up. Got new computer. copied Firefox profile from the and updated the profiles.ini to use the backup data.

I used a backup dated 12 Feb 2026.

I was able to restore my bookmarks and passwords from this profile, but they seem to be from many years ago. I was not syncing to my Firefox account and saving the passwords to my computer. i assumed they would be in a bakup. None of my OneTab items were restored.

I wonder if part of the problem is that Firefox wants to ( and did) update my new computer to Firefox 145 or 147. I don't know which Firefox was running when I had the issue but I suspect it was older.

All of the storage/moz-extension files are there and firefox is using the correct profile data. Is there any way to find/read/extract the OneTab history? Where should I look? I contacted OneTab and all they could tell me was to look in storage/default/moz-extension.. ( nothing readable there) Thanks

Hello,

This morning Firefox stopped loading new tabs, which usually means it is due for an update and restart. On my work computer, updates are managed by my organization, so I cannot prompt it to check for updates directly, but rather can just restart the application and it updates once closed. Today when I closed the window then clicked the shortcut to reopen, it notified me the exe file had been removed and prompted me to open the Windows store and reinstall, which I did. I have no indication as to why it uninstalled. All of my bookmarks and other history appear to have been wiped.

I have been trying on the support site to see if this data is recoverable, but nothing has panned out so far.

I have used Firefox as my primary browser for almost twenty years and frequently encourage friends and family to use it if they don't already. I have never experienced anything like this before. I am hopeful somebody will be able to assist me where reading through support center options hasn't yet, but if this is not resolvable, I'm done- the crash helpfully wiped everything clean, after all.

Any suggestions or response is greatly appreciated. Best, Z

Cannot get in to my daily bookmarks .They ask now to sign in as new member. I cant check my bank accounts or medical sites or any bookmarks info at all. all went away. Please help !!!!

Firefox updated itself, and re-opened without all my tabs from the previous session. That session isn't available in history. Is there any way I can get these back? All my work was organised in tabs.

Note there are no enterprise policies in place.

When Firefox updated I only created a default profile and could not or did not import bookmarks. They seem lost now. I was offered to import from other browsers like Edge but did not see any way to import from my previous Firefox version. I am unable to find any automatic backups in bookmarkbackups folder.

”Using my HP Notebook computer, BOOKMARKS (in Mozilla/Firefox): Who governs my access to my list, which disappeared on 2/20/2026. It looks like Google (i.e., Yahoo) has taken control of this function……….and, if I set up Sync on my computer, how will my current DEFAULT YAHOO EMAIL be impacted?”

I accidentally deleted all cookies in my browser using an extension and want to restore them to how they were one day ago, but I can't find the restore button anywhere. I found an article on https://support.mozilla.org/en-US/kb/firefox-backup , but I don't have the buttons mentioned in the article. I don't have a “Restore your data” section or a “Choose backup file” button, and when I click on the link about:restore, I get the response “Hmm. That address doesn't look right.”

PLEASE HELP

I have my browser.sessionstore.max_windows_undo in about:config set to 60 – it's been like this and working fine for several months.

It's set to this high number because I use an assistive technology which creates a fresh pop-up every time I deploy it, and Firefox treats it as a browser window closure when I close the pop-up. Consequently, I can easily rattle through well over 25 window closures in a day.

It's not necessarily that each window contains dozens of tabs and copious data, but nevertheless Firefox still treats it as a window 'within the meaning of the act'!

I just went to reopen one closed window from a couple days ago which did contain many tabs (partly why I closed it in the first place), only to find that the 'recently-closed windows' context menu is now only showing 20 windows (18 of which are the aforementioned pop-up assistive technology windows)

The really vital window that I want to reopen is not showing.

I've double checked in about: config and the browser.sessionstore.max_windows_undo is still set to 60 windows; nothing has been altered or reset.

I updated Firefox to 147.0.4 yesterday evening, but the problem existed before I updated Firefox, and is still in evidence since updating.

Two questions:

1) Why is the Recently Closed Windows context menu not showing the full number of windows it has been successfully doing with no problem now for months? I used to have to scroll down to access the full extent of the 60, but they were always there.

2) Why has it arbitrarily changed to 25 windows?

3) [I lied – Our chief weapons etc...] Is there a way that – given about:config still implies that the most recent 60 windows are retrievable – that I can access beyond the 25 windows limit that are currently showing as reopenable?

Thanks very much

(And yes, I already have things like OneTab and Tab Session Manager add-ons, but disabled those just before closing the important window, because I was trying to locate which add-on was draining the CPU. I assumed my 'recently-closed windows' buffer of 60 would suffice while I disabled the add-ons.)

I can't access Bookmarks anymore, I have many saved sites and I can't find them anymore? What can I do? My configuration has completely changed and I don't know where to start? I can't even translate with Google, it keeps stopping