Having Firefox open reduces all download speeds, upload unaffected

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 … (और पढ़ें)

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.

Asked by senekj 9 मिनट पहले

Firefox won't open on Mac despite trying everything I've read

Similar to the issue described in this thread (https://support.mozilla.org/bm/questions/1240674), I am unable to open Firefox - it simply refuses to open. I've tried mult… (और पढ़ें)

Similar to the issue described in this thread (https://support.mozilla.org/bm/questions/1240674), I am unable to open Firefox - it simply refuses to open. I've tried multiple times, the option key, and re-installing. Nothing seems to work, which suggests something about my user settings is the issue, but a) I am not keen on deleting this if possible and b) I won't delete my user settings unless that is necessary. Like the attached thread, I am happy to attach crash reports, but without the ability to even open Firefox properly it's not obvious how I do this - force-quitting it just sends a report to Apple.

Any help much appreciated - I'd quite like Firefox working again.

My laptop is a MacBook Pro 13 2020 (Intel) running macOS Monterey (12.7.4). I installed the version of Firefox available for download as of writing (v127.0 based on Finder).

Asked by Daniel Soutar 25 मिनट पहले

Last reply by Daniel Soutar 24 मिनट पहले

Random Total Freezes

For a while now, I've been having recurring issues with Firefox desktop freezing and becoming totally unresponsive. If there's any pattern to what causes it, I haven't be… (और पढ़ें)

For a while now, I've been having recurring issues with Firefox desktop freezing and becoming totally unresponsive. If there's any pattern to what causes it, I haven't been able to notice it; sometimes it happens as soon as I open the browser, sometimes it happens after several hours, sometimes it happens twice in ten minutes, sometimes it happens twice in a few hours (however, I can count the number of days it's happened less than twice in one day in the past few weeks on the fingers of one hand). When the browser freezes, it becomes totally unresponsive - it doesn't fade or display "Not Responding", and Task Manager shows nothing abnormal, but it doesn't accept any input at all, any video or other animated material that may have been displaying freezes, and it can only be "fixed" by force quitting from the task manager and reopening. This is exclusively a firefox issue; other programs open at the same time as the browser freezes are not affected.

The only real lead I have as to what could be going on is that sometimes, things don't freeze all at once, but in a cascading effect. For example, tabs, bookmarks, etc. might not highlight when moused over, but still accept the clicks, or selecting another tab might causes the address bar to display the URL of the selected tab, but the screen displayed in the window will not change. Once these cascading changes start, they generally progress to total freeze before I have a chance to do much with that information (only a few seconds), but it's unusual enough behavior to be worth noticing.

Things I've already tried that haven't fixed the issue:

  • Reducing the number of tabs used and otherwise reducing Firefox's system resource usage has not impacted the problem in any way.
  • Running in Troubleshoot Mode has not had a consistent effect on the problem (the most recent time I did, the browser ran stably for longer than I could stand to use the internet without my ad blocker, but this is only one data point in an already inconsistent spread; prior instances of the problem have occurred in Troubleshoot Mode)
  • Disabling hardware acceleration has not fixed the issue.
  • The issue has persisted through multiple refreshes and at least one full uninstall and clean reinstall.
  • The issue persisted after creating and switching to a new profile multiple times.
  • The issue persisted after renaming places.sqlite
  • The issue persisted after clearing cache and cookies multiple times.
  • The issue persisted after clearing downloads and history.
  • And very likely some other stuff that I'm forgetting, I've been trying to fix this on my own for a while now.

Asked by 8bitorne

Last reply by 8bitorne 33 मिनट पहले

I have Win 11 Lenovo notebook that requires me to sign in each time I open Outlook or YouTube when I use the Firefox Browser. Edge and Chrome do not require a sign each time i use Outlook and/or YouTube. A setting in Firefox clearly is che cause.

I have a Lenovo Win 11 notebook that now requires me to sign in each time I open Outlook or YouTube when I use the Firefox Browser. Edge and Chrome do not require a sign… (और पढ़ें)

I have a Lenovo Win 11 notebook that now requires me to sign in each time I open Outlook or YouTube when I use the Firefox Browser. Edge and Chrome do not require a sign each time I use Outlook and/or YouTube. A setting in Firefox certainly seems to be the cause. I reinstalled Firefox, still same broblem.

A week or two ago I had no issues with Outlook and YouTube. It happens now every time I Open Outlook and YouTube.

I now use EDGE and have stopped using Firefox which has been my preferred browser for years.

Best regards,

Jim Challender


Cell [edited out phone# and address information from public support forum]

Asked by Grampa Grumpy 5 घंटों पहले

The Page Isn't Redirecting Properly Error

Good Morning. I have been using Firefox for 20+ years. Last night it did an update overnight, and this morning I am getting "The Page Isn't Redirecting Properly" error … (और पढ़ें)

Good Morning. I have been using Firefox for 20+ years. Last night it did an update overnight, and this morning I am getting "The Page Isn't Redirecting Properly" error message on my business CRM site. This appears to be the only site having an issue. I have never had this error previously.

I tried all suggestions already including clearing cache/cookies, checking settings, delete history, troubleshoot mode and nothing. The site opens fine on Chrome and MS Edge.

Any additional help is appreciated, this is very frustrating.

Thank you.

Asked by soalivetoday 1 दिन पहले

Last reply by soalivetoday 2 घंटों पहले

The requested URL was rejected. Please consult with your administrator.

I keep getting the following error when trying to get into my websites: The requested URL was rejected. Please consult with your administrator. Your support ID is: <… (और पढ़ें)

I keep getting the following error when trying to get into my websites:

The requested URL was rejected. Please consult with your administrator.

Your support ID is: < 2345399105916549715>

This has occurred recently after I had a very short power outage. Firefox has been acting weird ever since.

Asked by Mike Stewart 4 घंटों पहले

Online Forms bugs

On many online forms, Firefox substitutes a dash " - " when I type a "9" . I cannot figure out why or how to override this. I am runnning Mac OS 10.13.6 (high Sierra) … (और पढ़ें)

On many online forms, Firefox substitutes a dash " - " when I type a "9" . I cannot figure out why or how to override this. I am runnning Mac OS 10.13.6 (high Sierra)

Asked by crothko 5 घंटों पहले

Display to big

My display is too big now and I lose parts of webpages in the "edges"? Search bar when I first sign on shows 120%. How do I get back to 100%? Please no technical jargon. … (और पढ़ें)

My display is too big now and I lose parts of webpages in the "edges"? Search bar when I first sign on shows 120%. How do I get back to 100%? Please no technical jargon. If I can't fix this,will have to quit using Firefox.

Asked by Lynn Christophersen 5 घंटों पहले

Two things - initial reason is notifications being MUCH too loud - second thing is inability to submit help request from https://support.mozilla.org/en-US/questions/new/mozilla-account/form

Hello, FIRST PROBLEM (I have been unable to submit a help request from https://support.mozilla.org/en-US/questions/new/mozilla-account/form) Windows 10, fully updated w… (और पढ़ें)

Hello,

FIRST PROBLEM (I have been unable to submit a help request from https://support.mozilla.org/en-US/questions/new/mozilla-account/form)

Windows 10, fully updated with the latest firefox version. Email program is MS Outlook through my employer. Email notifications are overwhelmingly loud if the global volume is sufficient for viewing content. Playing with the volume mixer doesn't help. I have searched for solutions online, and every suggested fix entails features or options that are not available on my system. Please provide complete instructions for Windows 10. Please respond to lanzcc@potsdam.edu

SECOND PROBLEM

Submit button on page https://support.mozilla.org/en-US/questions/new/mozilla-account/form never succeeds.

Asked by lanzcc 5 घंटों पहले

Firefox Privacy app changing all the time

This has been going on for a length of times, the Privacy app or window keeping changing when I used it. This morning, it started back when trying to close it to go to an… (और पढ़ें)

This has been going on for a length of times, the Privacy app or window keeping changing when I used it. This morning, it started back when trying to close it to go to another website. Also, the middle part of the privacy screen keeping changing.

Firefox is not secure because there is something going on every day with the settings. They keep changing on me.

Asked by Yolanda 6 घंटों पहले

zoom without changing layout

Hi, how can I zoom in and out on websites without changing any display or layout? For example, on some sites, zooming changes the layout of the text so that it all fits o… (और पढ़ें)

Hi, how can I zoom in and out on websites without changing any display or layout? For example, on some sites, zooming changes the layout of the text so that it all fits on the screen. Or zooming on some sites doesn't affect the size of the images, only the text. How can I zoom in so as to see the page in its original layout but with a wider view, thus preserving the scales of all the elements (as if I were zooming in on a picture) ? (in the screen below, zooming change the relative scale of the elements) Thank you for your help.

Asked by Blobitomousse 6 घंटों पहले

Firefox no longer compatible with Rightmove Professional

I've been using Rightmove Professional on Firefox for ten years plus but now suddenly it's not working correctly as the viewing windows no longer slide. Rightmove say it'… (और पढ़ें)

I've been using Rightmove Professional on Firefox for ten years plus but now suddenly it's not working correctly as the viewing windows no longer slide. Rightmove say it's due to an update by Firefox and advise to switch to Chrome but I really don't want to - will this issue be fixed? Thanks

Asked by Jondog 6 घंटों पहले

Nightly help menu doesn't function

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 disa… (और पढ़ें)

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

Asked by bobfishr 6 घंटों पहले

Every time I click on Foxfire, I get two error messages and it won't boot up.

I get the following two error messages when I click on Foxfire. Couldn't load XPCOM; and Entry Point not found; followed by this:  ?Nan@Decimal@blink@@SA?AV12@XZ co… (और पढ़ें)

I get the following two error messages when I click on Foxfire. Couldn't load XPCOM; and Entry Point not found; followed by this:  ?Nan@Decimal@blink@@SA?AV12@XZ could not be located in the dynamic link library...

I tried to uninstall the program, but got the same two messages and it would not let me. I downloaded a new version and I'm getting the same messages. Everytime I start my computer, I get the same two messages and have to click out of them to keep going. I've installed another browser, but at this point, I just want to uninstall Foxfire so it stops popping up with error messages all the time.

Anybody know how to resolve this? Thanks.

Asked by Todd Wright 7 घंटों पहले

Highlighted screenshots wrong color after updating yesterday.

As you can see in the attached image the highlight is coming out grey instead of blue, which is what is showing when I select 'save screenshot'. It used to be this error … (और पढ़ें)

As you can see in the attached image the highlight is coming out grey instead of blue, which is what is showing when I select 'save screenshot'. It used to be this error happened maybe one in 20 times and it was annoying because I am making these screenshots for use in youtube videos and it becomes unreadable, but now it is every single screenshot even after doing it dozens of times and with different pages.

Asked by Pottenger's Human 7 घंटों पहले

Unwanted Settings Re-enabled in FF v127.0.0

Multiple users are reporting in Microfix's Mozilla Firefox and ESR Updates 2024 in the AskWoody forum that the two options at Settings | Browsing | Recommend extensions a… (और पढ़ें)

Multiple users are reporting in Microfix's Mozilla Firefox and ESR Updates 2024 in the AskWoody forum that the two options at Settings | Browsing | Recommend extensions as you browse and Recommend features as you browse were both automatically re-enabled when Firefox updated to v127.0.0. I was able to confirm both those settings were previously disabled in my Firefox browser and re-enabled without my permission in v127.0.0.

So far this as been confirmed in desktop builds of Firefox v127.0.0 and Firefox ESR v115.0.2 released on 11-Jun-2024, but not in Portable builds of Firefox. I'm hoping that the automatic re-enabling of these settings is a bug, and not a deliberate change to make Firefox more intrusive.

I should add that the first time I re-launched Firefox after upgrading to v127.0.0 on 11-Jun-2024 I saw a banner message asking me if I'd like to Open Firefox every time you start your computer?. I'm hoping that clicking the "Not Now" button button once will be enough to prevent this nag from reappearing.


Dell Inspiron 15 5584 * 64-bit Win 10 Pro v22H2 build 19045.4412 * Firefox v127.0.0 * Microsoft Defender v4.18.24050.7-1.1.24050.5 * Malwarebytes Premium v5.1.5.116-1.0.1252 * Macrium Reflect Free v8.0.7783

Asked by lmacri 9 घंटों पहले