Firefox Support Forum

I am using Firefox 125 in Windows 11. And this just happens recently.

Sometimes, quite frequently, when I click the addressbar wanting to input or select a new address. The Firefox UI freezes (before the dropdown list of addresses is shown). The video/audio/other effects are still working, and from task manager, it does not cost more CPU/mem than usual. But it does not response to key press or mouse action. All I can do (that I know of) is killing the processes. The problem does not seem related to "current" webpage I am browsing. And I have not installed new addons for a few months.

Any idea what should I look into?

Since upgrading to the last version, 125.0.3 I'm getting tab crashes. Is there any way to go to a previous version? I have not had any issues with the websites I'm visiting until this new version of Firefox.

Need help figuring out why Firefox has a memory leak after an extended use of Firefox browsing. Don't know if its the result of an extension having this issue, or if its a Firefox bug. I have also provided my troubleshooting information, and a link to my memory usage is listed below for download: https://1drv.ms/u/s!ArspaZQCMwZ-iLU_CckOfLkl9DlETQ?e=MuIqsO Thanks in advance!

I've been trying to connect to discord for a while, left it on for 2 hours and hasnt loaded. when i opened the console log, all it said was "Firefox can’t establish a connection to the server at wss://gateway.discord.gg/?encoding=json&v=9&compress=zlib-stream" all over. Please help.

OS version : Windows 10 Pro 21H2 Browser version : Firefox Developer Edition 126.0 Beta 8 (20240501022718) Platform : windows, Web

EVERYTHING especially

 * The time to receive the first HTTP response when connecting
 * the time to call up the various css elements that make up the screen
 * the time to call up the img elements on the screen
is too slow.

tooooooooo slow. I waited 36.6s until http response for every new URL open! Of course, I am using a lot of Firefox extensions, but there were no serious problems outside of YouTube, and the same problem occurred after removing the extension, and i also confirmed that the problem caused by web extensions on waterfall(on firefox profiler) was minor.

I can't even guess the cause of the problem, so unfortunately there seems to be no additional information that I can give you. I'll keep following up as long as I can. I will attach some pictures that might help you solve the problem. and you can also approach to my full-recorded firefox profiler data

Starting a couple of weeks ago, I began noticing that occasionally (every 2-3 days usually), a few empty files appear in my c:\ folder (Windows 10, as up-to-date as Windows ever is). They have names like "wal3A7109C6" (no file extension). Usually 4-5 will be generated at the same time (ie, same timestamp, so within the same second).

When I first noticed them, I (nervously) deleted a batch with no apparent consequences - but I had to activate Administrator privileges to get rid of them. I ran virus scans but have seen nothing unusual.

A few minutes ago, I had Firefox open but minimized to the task bar. I also happened to have c:\ open in a Window I could see. As I tapped to expand the browser, another of the files appeared, and the browser window behaved oddly for a moment, as though about to crash. The last few versions - I'm at 125.0.3 (64 bit) - have been crashing more than I'm accustomed to, but this is the first time I'd considered the browser to be a likely suspect.

Does anyone have any clues/possibilities to offer? It would be much appreciated.

May I first say that trying to get hold of you to make this report was painful, and took about 20 minutes and a long walk around Mozilla's assorted website, opening two accounts, etc.

I received a notice while using Firefox on PC that an update was available. I was going to put it off, as I had 25 tabs open, but the notice indicated that my open tabs would be restored once the update was complete, so I approved the update. It download and I assume installed the update, seemed to temporarily close Firefox, and then reopened the original page with all my open tabs, plus an empty page. When I tried to open the tabs shown, they all indicated that the tab had crashed and then gave me the option of restoring that tab or on some restoring all tabs. Neither worked, in fact, that Firefox page became completely unresponsive and would not allow me to browse new urls (the tabs just spun). I actually had to use MS Edge to get to anywhere to seek out someplace to make a report. I first went to the discussion group and opened up an account there, but from there noticed that feedback on Firefox was at a different url. I then needed to create an account "here". Since nothing was working, I closed and reopened the Firefox page with all the tabs on it, figuring maybe it would restore the crashed tabs. It did not and all tabs were lost. I can probably get back to some of them using the history archive, but it was very disappointing and will be even more time consuming. I am running the current version of Win 10 pro, 64 bit, on a PC. I thought you would want to know about this. Thank you for your time.

Hi!

I'm trying to determine if I'm having a Firefox issue or not. I've been using Firefox for many years and frequently use private windows.

I've got a new laptop with Windows 11 and have been noticing that my private windows are sometimes closing unexpectedly. After which, I can't get my tabs back. This has only happened with private windows, and not regular windows.

Is this an issue that's being reported in the community? Thanks.

Hello! I updated FLOORP on the 5th May, FLOORP crashed and then Brave, Firefox, Waterfox, LibreWolf and Vivaldi started crashing. I had Brave and Vivaldi open when I launched FLOORP and FLOORP asked consent to update itself and after updating, it did not open in “previous session” and I could not open “previous session” through History. When I launched “Settings” from menu, “previous session” opened! I had pinned “Settings” earlier.

Now the bizarre happens; suddenly LibreWolf launches by itself also without “previous session” and open tabs in Brave and Vivaldi disappear to single New Tab. After some tinkering, I was able to restore “previous session” in LibreWolf, Brave and Vivaldi.

Now I close all browsers and open Firefox, no “previous session” and some random windows in its history, opening these random windows also opened “previous session”! 🙄But then Waterfox launches also without “previous session”, here clicking on OneTab extension recovered “previous session”.

Cutting short; I uninstalled, Waterfox, LibreWolf and FLOORP, this did not help, I ran System Restore twice to two different points and it has not resolved the issue.

Thankful for any help!