Diễn đàn hỗ trợ Firefox

I have lost all of my bookmarks, bookmark tool bar after Firefox's last update. I have spent the last day trying to recover what has been lost but I am having no luck in getting everything back in place. I have tirelessly gone over all your possible remedies and get no results. I can't even send a message to Mozilla through their help messaging system. My only recourse appears to start using another web browser. If I can't talk to someone who can help guide me through a mess I did not cause, then I am forced to find another company that is responsive to my problems. Call me at [edited] or write me at [edited] if you want to keep me as a user of your service. Regards Mark Hannah

[edited email and phone# from community support forum]

I found a folder on my desktop entitled Old Firefox data. It contains a folder entitled 3h0lsis5.default-release. It's almost 900 MB. Do I need this folder? Or can I delete it? Thanks in advance.

with the new function of Tab Groups i was wondering if it is possible, or can be added in the future, to sync existing Tab Groups to all or specific devices in order to access created groups on my private Macbook to my work Windows Firefox.

thanx for any reply

I have tried all of the recommended ideas in the articles about reloading bookmarks and nothing has worked.

Carlton Carr [edited email and phone#'s from public support forum]

I am using duck duck go. I was backing up stored settings and accidentally re-installed google. I cannot get duck back in mozilla settings--It says duck is my default, but moz opens to google. oops and help Thank you, Elsie [edited email]

I have the following problem and situation: I reinstalled Windows and did not write down the password for the Firefox account, and after logging in I restored the password, but it feels like my account has been re-registered, all saved tabs and passwords do not appear, but at the same time there is only one email that was used for synchronization and logging into the Firefox account. this email you can also contact through it: [email address]

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.

Hello, I received an email from you asking me to change my Firefox password for account security reasons. When I changed it, all the data synced in Firefox with my email was deleted. This upset me greatly because I lost important data and saved websites. Please restore the deleted data. Thank you.

I am definitely not interested in bells and whistles. Just want basic program. The new update ate my current settings and book marks. Did not create a backfile with my profile. Your help process sucks big time. Do you even do beta testing before you send them out?

Добрый день! Я создавал аккаунты через расширение мульти-аккаунт в браузере и сейчас все аккаунты удалились с браузера. Есть какая-то возможность вернуть аккаунты? Их было очень много и они очень важны

I reinstalled windows, installed firefox and signed in but my bookmarks (toolbar) have not sync'd, I have bookmarks toolbar set to always show, and my android phone has firefox installed and the bookmarks are there, they just will not sync to my pc, whats up?

Hello Mozilla Support, I enabled Settings → General→ Open previous windows and tabs, but after restarting Firefox all of my tabs were unexpectedly lost. I’ve confirmed the setting is still enabled, restarted Firefox and PC and checked History → Recently Closed tab with no luck. Why wasn’t my session restored? How can I recover my lost tabs? How do I ensure Firefox reliably restores my tabs going forward?