I-Firefox Community Forum

For example, say, you have 3 opened tabs in a Firefox (FF) windows. Normally, when you close FF and then re-open FF, it restores 3 previous opened tabs.

But, if you have another FF windows opened at the same time, when you close the FF windows with the 3 opened tabs and re-open back a new FF windows, FF won't restore the 3 opened tabs.

Same thing happens when you have another Private FF windows at the same time, when you close the non-Private FF with the 3 opened tabs, and then you re-open FF, it loses the 3 opened tabs.

That's why you can see 'countless' question about lost opened session, because of the issue above along with crash etc.

Is this a bug or a known feature?

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.

suspected sessionstore.jsonlz4 corruption possible Sync rollback conflicts extremely large tab sessions spontaneous restoration of previously closed tabs during live browsing I am not a techy person. Have seen on Chat steps that can be taken, but it is too complicated for me. Seeking remote or other help. Would like to know how complex an issue this is. I'm having a very tough time. It just restored around 1,000 previously closed tabs. It takes me hours to close them because they get mixed up with the tabs presently opened. It interferes terribly with my work. I'm reaching out to IT companies and then found you through Chat GPT. Please help if possible. TY! This is a Lenovo t16 laptop with windows 11 for home or personal. I haven't had a tuneup for a long time. I read that's not a good thing to do with this issue.

The Firefox Sync system is really neat for keeping our booksmarks synced across devices, but what I would also love to see is the option to sync all settings as well, including the changes made in the "about:config" settings.

Across my years of browsing I changed quite a lot of small little things and having to track all of those down every time I set up a new device or reinstall windows can get a bit tedious, so I was wondering if those settings can also be included in the Sync settings somehow - or if such a feature might be planned for the future?

Hi! I am very grateful to anyone who can help me. I re installed windows 11 on my PC and when I reinstall firefox it seems as if the firefox account info is at zeros. Reading after this problem it seems that prior to doing these full re installs firefox requires a backup process but I did not do it at the time even though sync was constantly active. Is there any way to recover all the information from the last sync prior to reinstalling windows?

Hello,

Referring to your article [https://mzl.la/3TS8WcA] (Import settings and data into Thunderbird for Android) . The first step is : Export Thunderbird Desktop settings

   Click ≡ > Tools > Export for Mobile. 

However, I am running version 128.3.3esr (64 bits) "Nebula" and the menu "Export for Mobile" isn't available under "Tools" as mentioned in the article.

Please advise

Regards

When I logged into my laptop on 9th November Firefox had closed. This happens sometimes, I'm often not sure why, but this time the previous session didn't automatically repopulate when I restarted. I navigated to the history options with the idea of retoring the previous session - either using that functionality or individually opening previous windows - but history was blank and the previous windows option was greyed out. Following suggestions online I've looked for .bak or .json or similar files to use as restore points but there's nothing since much earlier in the year up to 8th November, which are pretty much empty, and the 9th.

I'd be very grateful for any suggestions!

Dear Mozilla Support Team,

I am writing to you today to report a persistent issue I am having while trying to access Pinterest (www.pinterest.com). Whenever I attempt to visit the website, I encounter the following error message:

Pinterest Secure Connection Failed An error occurred during a connection to www.pinterest.com. PR_CONNECT_RESET_ERROR

I have tried troubleshooting this issue by:

Clearing my browser cache and cookies. Restarting my computer. Trying a different web browser. Disabling any ad-blockers or extensions. Unfortunately, none of these solutions have resolved the problem. I am using Windows 11 and have attached a screenshot of the error message for your reference.

I would greatly appreciate it if you could provide me with some guidance on how to resolve this issue. I am unable to access Pinterest, which is causing significant inconvenience.

Thank you for your time and assistance.

Sincerely, Hatice Bozkurt

Please help by recovering all my information that i have already filled in the form have failed to access my application form to complete and then submit. please do the needful to rescue me because i just have one day for submission

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?

"how to revive return all 124 tabs of prior sessions ? in Firefox...older version ? please help. & How to avoid if close by mistake 1 window with all ....vs 1-2 tabs only ? " HOW revive replace lost all tabs 4 days ago ? '

‘After I bought a new Dell computer 11/23 I lost all my prior FF bookmarks that I used for years. Is there a way to get them back if you have a record of them?’ Thank you for any help.

The LLMs said your sync website has that ability, but I can't find it. Is than LLM hallucination or simply disabled or something. I really want to not have to recreate these links.

Thanks!