Gach Táirge Community Forum

Sometime between 10PM 7/23 and 2 AM 7/24 I deleted my profile by mistake, and all of the data my browser collected has been lost. Passwords, history, cookies, chat logs, etc. No account sync, or official Mozilla profile until now.

Everything is gone and I don't know how to replicate the steps found in this video. Mac's don't conveniently show you things like deleted user data unless you know exactly where to find them. [|https://youtu.be/JWJwmKLqnZs?si=g_g47eHSwoB8XSL5]

I've already tried using Time Machine, but that failed spectacularly.

Current OS is macOS Tahoe 26.5.2, Firefox 153.0 (aarch64)

Both user accounts on my work pc have no passwords from shutting my pc off on friday and coming in on monday. no errors otherwise. all my bookmarks and tabs are still there but no passwords. I see a logins.json-15.corrupt file from friday. If i change the name to logins.json and try to open in firefox it says "SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data"

What else can I try to recover my passwords? I don't have it synced.

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.

im trying to restore a session that i accidentally closed. i deleted the sessionstore.jsonlz4 file, copied and pasted the upgrade.jsonlz4-20260715202819 file, and renamed it to sessionstore.jsonlz4. In the new window, all the tabs that were supposed to be restored have been replaced with moz-safe-about:blank tabs. The tab group where i had several tabs is still there on the tab bar. What did i do wrong?

This started since Firefox 153.0 (Debian package).

When I open Firefox for the first time after a reboot, it opens my latest tab but all the other tabs on that window are lost, and they show as "ghost tabs" as seen in attached image.

No other issue, other windows are preserved properly when I Ctrl + Shift + N

I have tried restoring my bookmarks using these steps but it doesn't work. Specifically, when I try to select "Choose File" in Step 3 nothing happens. The option will highlight, but when I click on it no window to choose a file pops up. Is there any other way to restore bookmarks using a json backup?

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.

Hi,

I had Firefox tab syncing set up on my phone, and the synced tabs were showing up fine on my other devices for a while. About 3 weeks ago, that phone was lost (long story — it ended up in a river) and I haven't been able to sync from it since.

Now the synced tabs from that device are no longer showing up on my other browsers, and I need to recover some important information that was in those tabs.

A few specific questions:

What is the current official expiration policy for synced tabs data (as of 2026)? I've found conflicting info in old forum threads — anywhere from 1 week to a year depending on platform and Firefox version. Is there any way to see whether my account still has cached tab data for a device that's been disconnected/inactive for ~3 weeks, even if it's not displaying in the normal Synced Tabs view? If the tab data has expired, is there any other server-side record (even temporarily) that Mozilla could check on the account side that isn't visible to me as the end user?

Any help checking the account status directly, or clarifying the actual current retention window, would be a huge help. For my email address, please request below.

Thanks, Ebe

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.