Firefox Community Forum

Yesterday, I noticed after I closed and re-opened Firefox, my browsing session was completely gone - all my tabs and windows, my entire browsing history, website sign-in status, all completely gone. I've been troubleshooting since then.

I've noticed that the 'sessionstore-backups' folder in my profile folder is missing. When I open Firefox, this folder is created and Firefox writes some data to it, but Firefox seems to delete the folder as soon as I quit Firefox. Firefox should not be doing this. My Firefox is configured to open previous windows and tabs, and is NOT configured to wipe any browsing data of any kind when it closes.

As a sanity check, I spun up a Windows Sandbox (briefly, it's a clean, isolated Windows environment) and installed Firefox there. I also enabled the option 'Open previous windows and tabs'. Firefox behaves normally - it re-opens the tabs/windows I had open when I quit Firefox. Great, that's what I expect. The trouble starts as soon as I sign in to sync. After signing in to sync, and letting the initial sync process complete, I open a couple of windows and tabs, then quit Firefox. Firefox begins nuking my browsing session again - the 'sessionstore-backups' folder is erased, and next time I start Firefox, all my windows and tabs are missing, and my browsing history is missing.

So, at this point, I'm assuming something in my synced data has become corrupt. I haven't installed any new extensions lately. I haven't changed any of Firefox's settings that would cause this to happen. The only thing I have done differently lately was enable Firefox Sync in LibreWolf and sign in to sync there. It seems like this session-nuking trouble started after I signed in to sync in LibreWolf. I assumed, since LibreWolf is a fork of Firefox, and because there were no warnings or indications the feature was incomplete/unstable/experimental/etc., that it would just work, that it wouldn't cause any issues. But it seems like it has caused issues. I checked LibreWolf's issues tracker for anything related to 'sync', but I didn't see anything noteworthy.

I've been using Firefox and Sync for numerous years without issue. This session-nuking thing started yesterday.

I use Firefox in a few places, and based on what I saw happen in my Windows Sandbox, this session-nuking issue is going to happen in every Firefox I'm signed in to as soon as it has a chance to sync. Obviously, I do not want this to happen.

What can I do to determine what the issue is? What can I do to check if something in my synced data has become corrupted? What can I do to reverse it? I'm not opposed to completely wiping/resetting my synced data, but I'd rather not if I don't have to. The only thing I would lose sleep over is my bookmarks, but I know I can export them. Are there any debug logs I can enable/look at? Anything I should look for in Event Viewer?

Thanks.

Restore the new tab button to the tabs bar, as well as the ability to put extension icons on the toolbar! There was no reason to remove these and it's highly inconvenient with these new changes!

Hi everyone,

I recently updated Firefox to the latest version, and ever since, it crashes immediately on startup. I haven’t installed any new extensions or made any significant changes to my system. I’ve tried restarting my computer and reinstalling Firefox, but the issue persists.

Is anyone else experiencing this problem? Are there any known solutions to fix this crash issue? I really rely on Firefox for my daily browsing, so any help would be greatly appreciated!

Thanks in advance.

Why are we still deluding ourselves that Firefox is a competitor to Chrome, when it's really Google's weapon against competition itself?

Mozilla is not a rights activist. It's a Surveillance Valley theatre group renting its brand names, spyware and lobbying capacity to Google on pain of death. The whole idea that Firefox is a last bastion of light in the fight against monopoly is a joke. But we're so neck-deep in monopoly that all we have left is that delusional fantasy.

I hope this reaches the core of Firefox.

On two occasions all of the favicons for my Bookmarks have disappeared. The only way I have been able to restore them is to open each bookmark using "Open All in Tabs" for each Bookmark folder. As I have many hundreds of Bookmarks, this is an extremely time consuming process. I have done this twice. I have just encountered a third instance of this problem and would like to avoid doing it again if there is any other way to restore the favicons.

I had saved the favicons.sqlite files from the Profile, but I am unaware of any way to restore the favicons directly from this file. The favicons.sqlite file appears to be of the proper size, i.e. ~17KB. On the last occasion, following a suggested solution, I rebuilt the iconcache hoping it would also rebuild the favicons, but that was not the case. As a result, I used the above process.

Any solutions to restore the Bookmark favicons without opening all with "Open All in Tabs" would be greatly apprecuated. I don't know what has caused the favicons to disappear. I am running Firefox 129.0.2 on a Windows 11 Pro PC.

Allan

Twitch, Youtube Live, Netflix, Kick... it seems any live streaming platform cannot play. I am running Linux Mint 21.3, Kernel 5.15.0. They work on a different browsers, they all also work on Firefox my laptop, which is also on the same OS and Kernel.

I have tried everything: installed ffmpeg, installed unrestricted ubuntu codecs, refreshed firefox (twice), uninstalled/reinstalled firefox, ive tried without extensions, yet nothing.

Cant for the life of me figure it out, im not sure if its my PC or Firefox on this machine.

Hello, After update to firefox 127 for linux I get popup messages every time I visit a site. A typical message is e.g. for google.com:

www.google.com 1

Any hints? Thanks in advance.

DEAR SUPPORT!! STILL CANT LOG IN IN ALI-EXPRESS :// I DID ALL THE STEPS! DISABLE PRIVACY BADGER & ADBLOCK PLUS AND I CLEAN ALL THE COOKIES FROM ALI-EXPRESS! BUT STIILL NO LUCK :(( HERE I MADE YOU A CLIP SO U CAN SEE THE PROBLEM. DAMMM ONLY PICs HMMM?! OK I UPLOAD IT TO YOUTUBE SPECIALLY FOR YOU!!! HERE IS THE LINK : https://youtu.be/Cz2Q263CJe4 HOPE THIS HELPS

Hello,

This morning, for the very first time in 12 years, I opened my hotmail/outlook email tab and got a completely blank white screen, and nothing more. I've restarted my laptop twice, just to see if it was a Windows glitch. Nope. I disabled ad blockers with the little shield in front of the URL--still no change.

I love Firefox and prefer to use nothing else. However, I tried to open my email with Edge and it works fine. It also works fine on my older computer that did NOT get the Firefox update, so something is amiss here. Firefox updated recently on this machine and I'm wondering if something went wrong in the update. I'm not very tech savvy, but can anyone help me?

Thank you, Marsha

I go through the process of signing into Firefox Sync, it sends the confirmation e-mail and i copy paste the code in, then it takes me to the mozilla accounts page and shows me all the data about my account, but when i click on sync under settings, it says "account disconnected" if i click "sign in" the process repeats with the end result being "account disconnected"

So, my old computer recently broke, but I luckily recovered all my files. I was re-downloading Firefox onto this computer, but my bookmarks and add-ons and stuff won't sync. When I searched for the solution to this, I saw someone having a similar-ish problem (https://support.mozilla.org/en-US/questions/1403774#answer-1563248), but they just said they had to wait awhile for it to sync. Now, I have a couple questions that I can't seem to get the answer to:

1. How long does it take to sync my data? How long did that person have to wait?

2. What if it never syncs and that person just got lucky? Is there some sort of alternate way to fix this faster?

I'd really appreciate help on this topic, but I'm not the best with computers. If anyone has had this problem, and figured it out, please let me know! I had a lot of bookmarks and a good amount of add-ons, I really would like to not lose those.

Since the latest firefox update, to clear history now, it has Clear site and download, saved form info, and searches all together now. There is no way to uncheck saved info and searches so that does not get cleared. Will there be a fix to this? There is no way to clear the history now without clearing the saved info and searches, which I do not want to do.

When you check the image, you can see two "HOME" entries. This is an issue I discovered after uninstalling and reinstalling the Firefox browser and using Sync.

HOME is my PC, and this image was screenshot on my laptop.

Additionally, the Sync for these HOME entries is not functioning properly. I tested this by opening several sites, and while Sync works well from my smartphone to my PC, it doesn't sync properly from my PC to my laptop.

Does anyone know how to solve this problem? I tried rebooting my PC, but it didn't work out.

There is a website https //secure.exeloncorp.com/login that will not load using FireFox. It will load using Google Chrome. Is this a function of the Website or FireFox? Is there a setting in FireFox that will fix it?

In other browsers when I add extensions, I can open an extension panel, or got the the browsers installed extensions section, and edit open up my extension setting pages, and edit them. For example uBlock Origin, but there are others. It doesn't seem possible to do such a thing with Firefox. Is that on purpose or is something wrong?

Hi,

I have a Mac with Sonoma. Somehow a while ago I ended up with Firefox ESR, which I was told that will not be supported after September.

I am a non-technical user. While I do have Safari and Chrome, I would prefer to continue using Firefox.

Could you please let me know the steps to execute to somehow switch from the ESR version to the current normal version without loosing settings, bookmarks or ending up with problems? Thanks in advance.