Firefox Community Forum

I went to Ugsound.com accidently while using Firefox on my Imac. The Firefox warning came up immediately and I left the site. Did Firefox protect me from malicious virus or was it too late? I was on the site for maybe 7-8 seconds.

If I configure DoH in Windows 11, Firefox is unable to make any name lookups.

Originally I had DoH configured in Firefox, I wanted to use a Custom provider so I entered the details, and this worked initially.

I then configured the Windows 11 OS itself with the DoH custom provider, and this also worked in other apps, I could also use nslookup to successfully perform name lookups.

However, after configuring DoH in the OS, when I returned to Firefox, I could no longer access any websites. If I reconfigured Firefox to use CloudFlare or NextDNS with DoH, they also would not work. If I disabled DoH in Firefox and used regular DNS, Firefox was still incapable of performing any name lookups and accessing any websites. Only when disabling DoH in the OS did Firefox begin working normally again. I re-enabled my custom DoH in Firefox and it works as long as I do not enable DoH at the OS level.

Is this a bug?

Firefox 129.0.1 (64-bit)

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.

I upgraded my version of Firefox from an ESR version to v129.0.1 on Debian 12. Drag and drop of files from the desktop or the file manager (PCManFM-Qt) into the browser stopped working. It is still working properly in Chrome.

This occurs with several web apps but, as an example, it occurs when trying to drag a jpeg into Roundcube Webmail while composing a message.

No browser console errors are genrated when trying to do this. It occurs in Troubleshooting (safe) mode as well. In apps that pop-up a "Drag files here" target, that target still appears but dropping the file on it does nothing.

I don't know who at firefox doesn't understand the point of fullscreen, but the address bar continues to pop up when the mouse reaches the top of the screen and there is no setting to turn this off. It is a comically incompetent choice. No, the chrome folder or extensions don't work. Might just switch back to chrome as this is a pattern with firefox's choices.

Dear all I need an extension that can search for a journal title on scopus sources webpage search engine

https://www.scopus.com/sources.uri

this would be very useful i hope that someone could develop such an extension

I tried a 2022 sourced help answer result content but it was broken, and that seemed to be the most recent gainful help response connected to my issue, another variant from elsewhere did not work at all, it was probably older still, so I need working code for the most recent version of Firefox Browser, or however recent enough to not so conflict. Much Appreciated.

Hi ive noticed that randomly since the update when using firefox ill go to type something into the address bar hit enter and normally it would search with google however it registers me pressing search but nothing happens.

Im trapped as i cant search or choose any links and have to restart the browser unsure why this is happening its my first issue with firefox and the sole reason me making a account to post.

any help would be greatly appreciated

Whenever i open firefox the tabs just crashes. there is nothing but a blank screen with a tab crash reporter. any tab or anything i try to open just gives a tab crash. the crash report is this: bp-92ae3e9d-16cb-4655-a0df-8ce150240816

I'm running Windows 11 and Firefox 129.0.1 I open Firefox, using no connections to any website, still my Avast blocks connection from 3245.UK "because it is infected with URL:Blacklist" , every few minutes. Any idea???

Firefox Browser 129.0 64-bit Extensions: Adblock Plus, Adobe Acrobat Windows 11 Pro V23H2 - OS build 22631.3958 MS Windows Security No malware, etc. found

Intermittently find browser open on its own @ homepage without any action on my part.

Hi. Yesterday something weird and unexpected happened to my Firefox and amongst other things it lost all my open tabs, of which there was about 70 or so. Another strange thing which happened is a website I use turned into Japanese language all on its own and in the end I was forced to delete cookies for that website to revert it to English, even though it was never changed in the first place. My homepage shortcut tiles were also all rearranged and some deleted. I have no idea what caused all this, but the biggest issue for me is that I lost all my open tabs. I refreshed Firefox to try to cleanse whatever it was that caused this, but even before this I lost my tabs.

My question here is; I am sure that the history of those open tabs is still listed somewhere on a file and I can get back my previous session which had all the tabs on it, but I have no idea where it is or where to look. How do I do this and where do I find the older file with the open tabs.

Thanks.

I am on FF 129.0.1 on Windows 10 laptop. I download financial data from several sources using the .qfx format which is fed into personal finance software (Moneydance). Everything works well and download history shows all downloads from banks, but does not include downloads from my brokerage. Is this something the brokerage is doing or some setting that I can control. Thanks for any help in explaining this.

I noticed today that there's a small blue cube appears at the tip of the mousecursor inside a firefox window , I guess it's some keyboard shortcut I accidentally activated but can't find any info on where to disable

When I open a .jpg file, the Firefox web browser window width is too big. I want to change the default window width. Which item in about:config controls this setting and what value should I enter to have a default window width of approximately half the screen size?

Hello!

When I try to log into a medical chart I keep getting the following message,

Oops!

Server is missing the required Special Updates: E10513993, E10515928, E10516261, E10516347, E10516634, E10517430, E10517163, E10518158

I have the latest Firefox update and can't find the above updates to install them. Please help. Thank you!

my Firefox was working just fine, and I did an update this morning and now nothing works. My Firefox will not install and nothing that works with Firefox will work. I tried to uninstall the Firefox that I had and it doesn't even show up on the list of programs any more, so I can't do an uninstall.

I'm having a difficult time logging in. I probably need to get started all over again. I locked my self out by too many attempts to log in. I'm totally lost and probably need to start the process all over again.