Fórum podpory Firefox

I have the strangest problem. If Firefox is closed and I do a speedtest in another browser, download a file, or do other internet activity I'm getting about 200-250Mbps d/l and 100Mbps upload. As soon as I open Firefox, whether I load a page or not, the upload speed stays the same, however the download speed drops to about 25-50 Mbps. This only happens on one PC, the upload isn't affected, and resolves itself as soon as Firefox is closed. Here's what I have done without any change in this behaviour;

• Rebooted
• ipconfig /release /renew /flushdns
• Removed and reinstalled the network adapter
• Enabled, disabled windows auto tuning and tested (slower disabled)
• Updated Windows
• Refreshed Firefox
• Uninstalled Firefox, deleted remaining folders from Appdata (Local, Low, Roaming) as well as the program file directories and "Mozilla" registry entries. Restarted and reinstalled. Issue immediately resumed when Firefox was open.

Also when connected to a VPN Firefox download speed increases to about 60Mbps and is consistent across other software. If I split tunnel another browser outside the VPN, it is still stuck at 60Mbps. If I close Firefox the speed increases.

This makes absolutely no sense to me, so I'm hoping someone can shed some light on this - but it does seem to be something Firefox is doing.

Thanks for any help anyone can provide.

Nightly updated this morning and the help menu from the sandwich has stopped working. The menu options display, but none of them function. Mouse click makes the menu disappear as if it's going to show the panel attached to the option.

Version: 129.0a1 Build: 20240613093628

Hi! I wish to edit my limit on how instances firefox runs but i cant. I searched up how to change but cant find the option for it. It said that i should just untick use recommended setting in performance but all that happens is tht i get anotheter option to untick hardware accleration.

session is completely gone. I tried to restore it via various help articles and forum posts but without success.

I see a stg-backups-ff-126.0.1 fodler in my download folder which contains information about tabs that I had open. But I don't know how to use firefox to use that file.

I alos tried to the \sessionstore-backups folder with files named like "previous.jsonlz4" but I do not get the menu option for restoring a session.

from a file named "error-sessionrestore-1718212432477.txt": 1718212432149 SessionStore ERROR The session file is invalid: : TypeError: state.windows[0] is undefined(resource:///modules/sessionstore/SessionStore.sys.mjs:1163:11) JS Stack trace: initSession@SessionStore.sys.mjs:1163:11 onBeforeBrowserWindowShown/<@SessionStore.sys.mjs:2035:35

FF just did an update and now I can barely use the browser. Its slow and then spins and crashes... it took me 6 minutes to just get this open and type this. All my links and sign ins are on it... ugh... How do I reverse the update? thanks

Dear Support Team,

After updating to last Mozilla Firefox version (126.0.1) all my ngx-datatable tables are overlapping all rows over the first one even if the entire height of the table is correct calculated.

This is a blocking point. I need assistance urgently.

I started having new tab crashes a couple of weeks ago on Firefox and Brave browsers. I have looked in the extensions settings and do not have any added extensions so that did not cause the problem. I also run Norton antivirus and Norton Ultimate utilities software and regularly clean out files and scan my computer for malware. Not sure if Ultimate Utilities is the problem since I have had other problems in the past with that program. Also, I wonder if Windows updates caused this problem? This has also caused problems in the past. To get around this problem I have to copy the link then right click on my mouse and open a new window the paste the link. Very annoying and time consuming. How do I fix the continual tabs crashing problem?

Greetings, every so often I'm having an issue loading pages for certain sites that aren't sketchy at all. The most recent one is TireRack.com. I'm shopping for tires for my car and Firefox is loading all the other sites I've visited but it won't load any page from TireRack. They are a legitimate shopping site. It happens from results of a Google search but I've also tried typing the main page of the site's address into the address bar, clicking various other links that display below the actual search result that go to other pages within the site, etc. The site loads fine in both Chrome and Edge. This happens every so often and it's always a legitimate site and the exact same behavior. I can't recall any other specific sites at the moment but it's enough to have me pretty irritated today as when I'm shopping I like to have multiple tabs open with all my options for comparison and price considerations and today I have to have one of them open in a different browser which makes it much more difficult to keep tabs on especially where I'm used to only having one browser open for all instead of having to remember that one of my options is open in another browser. I have glanced through my browser setting as well as my windows security settings but I could spend hours in there trying to figure out things and potentially breaking other things myself, which I don't like doing. Any suggestions or other info on what could be going on will be much appreciated, and thanks in advance.

Ray.

I can not log in to Outlook anymore on my computer when I use Firefox, but it is possible when I use Edge. But I prefer Firefox. What to do about this?

Billy

Lately, I have been getting a pop-up error when I start and close Firefox. The error reads: "XULRunner Could not determine any profile running in backgroundtask mode!"

I have found posts such as this one: https://support.mozilla.org/en-US/questions/1398228 and other posts suggesting to disable the scheduled task in Windows Task Scheduler, but none of the solutions have worked thus far. Anyone know of any other solutions?

Bonjour, Hello,

I contact you because, even without an adblocker, Youtube is very slow with Firefox navigator. I don't understand why and I don't have this problem with Google Chrome ? Fews years earlier, I never had this problem with slow Youtube when using Firefox Navigator. I don't know if the problem comes from Youtube or Mozilla and I contacted both of them.

Thank you.

Bonjour,

Je vous contacte car, même sans bloqueur de publicité, Youtube est très lent avec le navigateur Firefox. Je ne comprends pas pourquoi et je n'ai pas ce problème avec Google Chrome ? Quelques années plus tôt, je n'avais jamais eu ce problème de lenteur avec Youtube lorsque j'utilisais Firefox Navigator. Je ne sais pas si le problème vient de Youtube ou de Mozilla et je les ai contactés tous les deux.

I have 750mb Claro fiber internet, directly on the cable. I updated Firefox. My internet dropped to 300/340mb. I complained to Claro. They tested by connecting another computer to the cable. It gave 800mb. I installed Chrome. Speed ​​was 900mb. What to do in Firefox to regain speed?

Site (https://www.pinerolo.news/

The animated images of the articles are loaded once every 3. On Chrome Android I have no problem.

I solve it manually by resizing the page, so they load.

Where could the problem be? In the animation of their site? Do you have any advice on a fix?

Perhaps I am the only one experiencing this issue but it is causing such an issue for me that I am afraid I will need to abandon this browser. I never in my life thought an internet browser displaying the forums for the browser would require so many processes.

Am I the only one? I have a pretty basic experience going on here but this is causing such a struggle I might need to find a new browser. I just don't understand how this even gets to be this way.

I am very grateful for a couple of advantages this browser occasionally showcases and I really don't want to migrate to another browser across my devices. All of the options I have read in this forum are pretty much disabled by the updates to Firefox but I am willing to try just about anything within reason that won't be quickly screwed up by another update.

My apologies if I sound frustrated, but come on that's a lot of processes to show your support page and it's eating up so many resources that could be used to trouble shoot my projects in a timely manner. This impacts performance to the point that I can't watch a tutorial with nothing else going on while working with GDevelop.

Hi Support Team, Hope you are doing well. Do you have any issues with the service as I see from https://downdetector.pl/status/duckduckgo/ 144 was reported?

If you can just email me about reason if there was any malicious activities I happy to help.

Thanks RO

Had an update for Firefox happen last night and now the Duck Duck Go extension will not work. Just goes search not found?

Here is the error - There was an error displaying the search results. Please try again. When I turn off the extension Firefox runs fine.

I had turned off the extension first and turned back on same issue. Removed extension and reloaded same issue. Restarted router same issue. I have uninstalled Firefox and then reloaded same issue with Duck. Duck Duck Go works in my Edge browser