Firefox Community Forum

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For years I had my Firefox sync working fine between Win10 PC, Android and several Win10 laptops. However yesterday I installed Windows 11 on the same PC I have Windows 10 (bought new disk) just to have a fresh install. Started with installing firefox - and here when problems begin. It couldn't let me log in into Sync, I was being immediately logged out ("Account disconnected"). Somehow I managed to log in, but then all my previous data was erased (passwords, bookmarks). I thought ok, maybe later it's gonna sync. Started installing extensions, saved one password. When trying to sync tabs with Android phone it didn't work, it couldn't see any tabs (but it could share tabs between devices!). On Android I still have old passwords and bookmarks saved, same as on old Win10 (on which I got logged out). Alright - it didn't sync after restart so I removed Firefox profile on machine, started again with logging in - and it synced only ONE password that I saved previously on same Win11 machine, with extensions I freshly installed back then. So it saved to sync improper data, forgetting about old? Logged out from all of my machines in Firefox Account. Now I'm back to my original machine on Windows 10. And what? I can't log in! Same error as on Win11 after install - "Account disconnected". Checked about:sync-log and found error logs - pasted into "Troubleshooting information" of this post.

Thanks

Hello,

I’m encountering an HTTP 500 Internal Server Error on a custom web application that I’ve been developing. The error occurs intermittently and is not tied to any specific action or user input. I’ve checked the server logs and they show generic error messages without much detail.

Here’s what I’ve tried so far:

Checked server resource utilization and logs Reviewed application code for potential issues Verified database connections and configurations Despite these efforts, the issue persists. I’m looking for advanced troubleshooting tips or any specific tools that can help diagnose and resolve this issue. Screenshots and log excerpts are attached for further context.

Any insights or recommendations would be greatly appreciated!

Thanks in advance.

Firefox 129.0 (64bit) - Windows 10 (with current updates)

Sometimes (except when I'm demonstrating the problem of course) a Google search simply hangs. In the search field (next to the shield & lock) the website for the search appears, eg https://www.google.com/search?client=firefox-b-d&q=how+secure+are+android+phones or https://www.google.com/search?client=firefox-b-d&q=nsw+service+parking+meter+app there is no other response and no activity in bottom left corner of the window.

Simply clearing history (history, cookies, cached files, but not site settings) fixes the problem and the search can then be repeated and new searches done until the next time, when it's a case of rinse & repeat. No other action is required, which would seem to suggest that the problem isn't elsewhere.

This problem affects both my wife's and my PC (same configs), and has for several weeks, sorry can't be more precise as to when it started.

Thanks, Mike

I am constantly seeing this message on YouTube. I don't have troubles with any other website. I get this message yet other tabs will happily load different pages. I have a fibre connection, I am definitely connected! I have tried everything I can find to remedy this problem but nothing works, for example a flush DNS command. And yes, of course it absolutely still happens in troubleshoot mode.

This has been happening for over a year now and it is absolutely driving me insane. Whenever this happens I can open another browser and will have none of these problems with that browser. I have been using Firefox for over 20 years religiously, but I am getting so sick of this that if I don't find a solution for this problem soon I will be done with Firefox, I don't even know why I've persisted with this problem for so long. Please help!!!

I received a notice when trying to download : We can't connect to server at downloadzip.wolfgangsvault.com . It was suggested that I check that Firefox has permission to access the web ( I might be connected but behind a firewall). Please help . Thanks!

My searches (regardless of Engine) are coming up in Russian. I don't speak Russian. It does not seem to be the search engine, and does not happen in Chrome, only Firefox.

Today, a white bar about 1 inch wide is at the top of my screen blocking the tool bar and access to other info. How do i remove it?

I have restarted my computer and closed the browser. Still there.

Michael

A few years ago jscher2000 gave me wonderful instructions for how to create some of the features that were once easy for ordinary users like myself to control through an Extension called TabMixPlus. Apparently there was some big disagreement between the developer and Firefox and they completely disabled it. At any rate, I'm continually frustrated when I accidentally move a pinned tab to a new window while trying to move or resize Firefox. I would like to know how, in about:config, I can create a setting with which I can protect pinned tabs. Thanks.

While scrolling around I saw something that said Firefox thinks I'm operating under 'Windows 10. NOT TRUE'. I've had Windows 11 for a while now. Does it make any difference? Russ Marshall

I updated to version 129.0 and Hulu stopped streaming and news video imbedded in news articles will no longer load. I have removed and reinstalled Firefox and cleared all cache. It is affecting my desktop and laptop. Both operating systems are windows 10 64 bit. I made sure the Firefox download was 64 bit. The problem is not the websites as they will load and attempt to load content but it behaves as if it is being blocked. It is not my antivirus because I have turned is off and there is no difference.

My screen went black this morning and I couldn't get the screen to reappear. I turned the power off, then waited a minute or two before turning it back on. My usual screen with all the apps was gone and replaced by a generic "windows" screen. I had to re-enter all kinds of information and I'm finally able to see my bookmarks, but all of my documents and pictures stored on my computer are completely gone. Did Mozilla/Firefox perform an update? And if so, how do I get back to my personalized screen - and more importantly my stored documents and pictures?!!