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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.

Am i the only one that finds these instructions totally hopeless when syncing my desktop to phone?.. So i tap on the 3 dots / Menu in Firefox on mobile, but after that there is NO Sync & Save Data to tap on anywhere in Firefox mobile after hitting the menu dots??.. and i mean ANYWHERE in the menu, or settings or account (of course there is the ususl Syncronise Now option in the account.

So just where is this Sync & Save Data i would lobe to know, nevermind how am i supposed to pair my devices when theres no clear way to access this and the associated QR code?

Totally frustrating, I've never understood these instructions with no outcome possible.

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?