I-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.

Hello. I am not familiar with this end to end encryption that Facebook now does for Messenger but now when I try to use Video Calling/Chat it tells me it is not supported by my browser, Firefox. I have never had any problems with it before. Is there a fix? Thanks

I'm using 128.0.3 (64-bit) for Windows, on Windows 10.

1. I open Firefox normal window. It has some pinned tabs. 2. I open an additional private window 3. I close the normal Firefox window. Only the private window remains 4. I close also the private window 5. I restart Firefox normal window. The pinned tabs have disappeared.

Thank you. Adrian

let's keep it as brief as possible.. i have no idea what the hell the degraders of cloudflare are doing, for the past YEARS all sites that required cloudflare worked just fine, and now i lost access to multiple sites on firefox because of the cursed "are you human: captcha loop" i'm looking for extensions, i'm seeking github codes that i don't even know how to execute. the loop keeps demanding me to change the browser to a chromium.. isn't this supposed to be treated as a targeted cyber crime? from google against mozilla? how do i fix the captcha endless loop?

When scrolling down I choose to read an article in a new window. When I open the new window, on the right side, a pop up window appears titled “Join the Conversation” or “More from Daily Express” blocking some of the article’s words. How can I stop this pop up window from appearing? Thanks.

using firefox version 109 and my internet down load manager no longer works, it works in other browsers but not since updating firefox. not sure if i was successful in posting this request prior to this one so will give it another try. thanks

Hello,

I have a Dell Windows 10 computer. I have three browsers on my compute: Mozilla Firefox, Microsoft Edge, and Google Chrome. I have an account with Clickbank.com, but I am only able to log into Clickbank using a Firefox Privacy Windows. I am not able to log into Clickbank using Firefox, Edge, or Chrome, only in the Privacy Window. I do have Malwarebytes browser guard on my computer, but I have it turned off when trying to log into Clickbank.

Does anyone know why this is happening?

Thank you.

I just updated to the latest version of Firefox, and all of a sudden I have a new icon, Extensions, that looks like a puzzle piece, I cant seem to be able to remove it....at all.

I tried to Connect Dropbox to my desktop, but the page would not load.

Chrome has no problem loading the page.

Could someone please let me know if they have the same problem

After updating the Mozilla browser, two sites related to watching TV movies stopped opening - Apple TV and Canal +. The Apple TV site does not respond at all, Canal + shows an error. Clearing cookies doesn't help. Another browser, Chrome, opens pages normally.

Yesterday I was able to see www.wowpresentsplus.com videos without a problem, but today I'm getting the next error:

Unable to play video. Please try again in a supported browser.

I have the latest version of firefox. I've cleared the cache and so on. Any idea on how to solve this?

After 129.0 update, Hulu streaming quit working. I have other streaming services that still work fine. I tried it on older version of Firefox 115.14.0esr (64bit) (old pc Win 8.1) and it works fine there. Can I go back to an older version of Firefox or is this a known issue with update?

This is the issue, Hulu website loads and allows you to log in. When you try to stream a show, it plays a commercial then freezes.

I have Hulu live tv streaming and the video is not streaming. I get a black screen when I select a channel or an item from the library. This also happens when I try to stream local tv stations' 24 hr streaming sites. Other streaming services (Disney+, ESPN+, Netflix... etc) stream just fine. Hulu works perfectly in Microsoft Edge but I truly prefer not to use it. I've been using Firefox for years. This has happened after the latest update of Firefox. The update before this latest I experienced a similar problem and using the trouble shoot mode narrowed it down to a problem with Adblocker Ultimate extension. I deleted the extension and reinstalled it and the problem corrected. I did the same this time and no success. I have cleared the cache and reset Firefox and still the problem exists. TIAF any help.

There are 32 shortcuts on my home screen - 4 rows of 8 each. However, I accidentally "dismissed" one shortcut - now there are 31 total. I cannot figure out how to restore a shortcut. Is the solution in about:config (browser.newtabpage.pinned)?