Diễn đàn hỗ trợ Firefox

Just recently, I've been having problems with websites run by Cloudflare. Whenever I attempt to access ANY website that is operated by Cloudflare, I'm often presented with a blank page, or a Firefox error message. Sometimes I'm even presented with the DDoS protection error, even though my computer is clean having being scanned by Kaspersky and Malware Bytes.

I reiterate this and say that it's only Cloudflare sites that are causing problems. Very occasionally they will work for up to an hour or so but most of the time it is error messages or blank pages. Interestingly, other web servers such as Amazon, OVH SAS and Akamai all run with no problems so I wonder what is Cloudflare's problem? Is this something to do with my browser or the web hosting services?

Firefox version: 102.0 (64-bit) System: Windows 10 21H2

I recently downloaded a file that may have had some sort of virus or malware. The file came up negative in Windows Defender and Malwarebytes but I deleted it anyways; however, I still get a download popup every time I open Firefox telling me that "This file contains a virus or malware." I've cleared the download library and browser history (cookies, cache, etc.) but I still get the popup from the Firefox.

Is there any known fix for this? Thanks!

Ever since I started using Firefox which was months ago, I've been getting this "Hmm. We're having trouble finding that site" page multiple times a day when opening links to various websites. Refreshing the page makes it load correctly. I've tried troubleshooting this in the past but didn't spend too much effort, but enough is enough. Things I have tried:

• Disabling all extensions
• Disabling hardware acceleration
• I am using the default theme so there's nothing to disable there
• Clearing the cache
• Checking my internet connection (I'm connected and everything else works)
• Flushing my DNS
• Resetting Windows, which included reinstalling Firefox (I did this to fix something else, but still)
• Disabling IPv6 and DNS prefetching
• I am not using a Proxy

I feel like I've tried everything. What else can I do?

Hi, Firefox brings my computer to halt after a few minutes of usage. The only thing I did after opening the browser is go to support page and the FirefoxCP WebExtensions process memory usage went over 20 GB of memory.

I have tried restarting my MacBook a few times as well as restarting firefox, but nothing has helped. I’ve the latest version of FireFox installed, and using a MacBook Pro with 16GB of memory.

I haven't made any changes nor added anything new lately. I think it may have started after the last update.

Thank you for your time and support!

Al

Hello,

When I try to log in to my one of my bank's secure website, firefox is not connecting. I can connect with chrome and edge. Firefox does connect with other bank and investment accounts websites. I am having the problem with this particular site. I had faced this problem with another website (non-banking, but secure), but it corrected itself in a few weeks.

I appreciate your help.

Thank you.

Dave

When typing, Firefox will lag and not display the words until much later, making it hard to know what I'm typing. This applies to any app that I'm using on the browser. For example, I typed this whole paragraph before a single word appeared, and even then, it still took another 30 seconds to actually appear. I've already reset, refreshed, uninstalled and reinstalled, updated, everything like that. I have a couple extensions, AdBlock, Honey, WebRTC Lead Shield, and Return YouTube dislike. But I ran it in safe mode and the issue was still there. I'm running the latest version of Windows 11 if that makes any difference.

This sounds like it's a Meetup problem, and in fact it may be, but now I am having doubts.

The problem is that I can't upload photos to a Meetup event. (This will mostly just be a problem for Meetup organizers.) When I click on "Save photo", nothing happens. No error message, nothing. It's as if the "Save Photo" button has been disabled. Firefox is my browser while I access Meetup.com, and I have the latest and greatest version of Firefox.

I contacted Meetup and they haven't been able to solve the problem; they suggested that I clear my cache and my cookies and try again, but I get the same result. HOWEVER, when I go into Microsoft Edge, I can upload photos with no problem. So I have a work-around: use Microsoft Edge to upload photos. So my question to you centers around: why does this work perfectly in Microsoft Edge, but it doesn't in the latest version of Firefox?

To test the possibility that it's a bug on my personal desktop computer, I went to the public library and tried the same experiment, with the same result. So I don't think it's problem with my personal desktop computer.

One other piece of information: the exact same thing happens (failure to update photo, that is) when I have the photo open in another application (Photoshop), even if I try to "save photo" to Meetup in Microsoft Edge. Then when I close the other application (Photoshop in this case), Microsoft Edge lets me "save photo."

I know that Firefox really doesn't want me to try to revert to a previous version, and it makes me nervous too, but I am suspecting that something in the latest Firefox version actually introduced a problem. (Or maybe triggered a Meetup bug of some sort; I still haven't located the problem.) I've been on Meetup.com for years, I've had Firefox for years, they've worked together to upload photos in the past for years.

If you want to get into the details, below, for what it is worth, is my initial question to the Meetup support people (with whom I am still in a conversation).

- - - - - - - -

I can't upload a photo for my event. In fact, I cannot upload a photo for any event at all. I deleted a couple of photos and an album because maybe our group had too many, but that didn't work. I can't even upload a photo that I had previously uploaded to a different event, so I don't think that the problem is with the photo itself.

Here's what happens. 1. Edit the draft of my meetup. 2. Click on "upload photo." The photo is 1827 x 1009 pixels, total size 63 KB. 3. I click on "Upload photo", then in "add photo" I click on "upload photo" again. I browse for the photo and select it. 4. The "crop your photo" screen appears, with the selected photo in it. It's already the size I want, so I click on "Save Photo".(Cropping doesn't help either.) 5. Nothing happens. No error message, nothing. The only think I can click on is "cancel," which takes me out to the previous screen. - - - - - -

I've been using my banking site for many years on my desktop computer. Today the site comes up but when I try to log in I get a "404" error message. I tried logging in with Edge and there was no problem. I have deleted all my banking cookies on Mozilla and the result is the same. This is a major problem and I would appreciate any suggestions.

For the past couple of weeks I am not able to log in to AA.com. When I fill in the require fields ( AAdvantage # or username, Last name, Password), it redirects to https://www.aa.com/sorry.html. I have no problem logging in on one of the other major web browsers. Ad blocker is turned off, cache has been cleared, all the tricks that usually solve such problems. So, I'm beginning to think that something in a recent Firefox update doesn't play nice with AA.com. I'm using Firefox Ver 91.0.2.

Any suggestions?

I noticed some peaks of usage on both internal and dedicated GPU while watching videos on YouTube. This happens only when watching videos not on Full Screen mode. I tested also with chromium but there's not this issue. What is causing it? How can i stop this behavior?

For an unknown reason, Firefox Browser doesn't render portions of text on some pages, leaving invisible areas. I'm using the latest version (95.0.2) on Windows 10, but this was a problem in other recent versions. It only happens on some systems. No other browser I've tried has the same problem, so the issue is definitely Firefox-specific.

One example of a problematic page is arxiv.org, another one is Caltech News; see the attached screenshots for how Firefox renders these pages on my system.

Here's what I found out.

1. The issue goes away if I disable the "Allow pages to choose their own fonts, instead of your selections above" font setting.
2. The issue remains even if I disable/uninstall all add-ons.
3. Refresh-install doesn't resolve the issue.
4. After uninstalling and installing Firefox cleanly again, with old settings auto-imported (bookmarks, history, logins ...) and no add-ons present, the issue is not present at first. However, if I enable "Open previous windows and tabs" option to restore my session on startup, the issue reappears after I close and re-open Firefox a couple of times, and doesn't go away after that. It doesn't matter whether the problematic pages are included in the restored session or not; they will simply not show all text as expected if I visit them.
5. Deleting the entire cache, cookies, site data and site settings doesn't help.
6. Opening Firefox in Troubleshoot mode make the problem disappear, but it returns immediately when I leave the Troubleshoot mode.

Any ideas how to fix this?

Hi, for the past week whenever I open Firefox (FF) it works normally for about two minutes, then slows, then causes my entire mac to slow and freeze. If I don't force quit FF quickly, my mac crashes. Once I force quit FF everything is fine. I've been using Chrome for the past week or so hoping FF would fix itself with an update but no go.

Anyone else having this issues?

Hello - I've been unable to stream Twitch content on Firefox 94 for the last day or so, however, the issue impacts Youtube and Vimeo live feeds as well.

1. No outages in my area (Twitch works fine on my phone) 2. Tried Firefox in Troubleshoot mode (which disables all extensions) Twitch still broke. 3. Tried Incognito and Troubleshoot mode, Twitch still broke. 4. Cleared cookies and cache, plus Incognito and Troubleshoot mode, Twitch still broke. 5. Tried a different browser, Twitch works fine on Edge 6. I tried all of the above using a 4G Hotspot instead of my fibre connection, same issue

I’ve done some side by side testing of Edge and Firefox today, streaming the same content on each at the same time. Twitch runs fine on Edge. Twitch loads on Firefox and the chat looks fine. The chat arrives simultaneously on Edge and Firefox, it’s just the audio and video won’t play on Firefox. The audio and video don’t work on the ads either.

Watching a Youtube game stream side by side on both Edge and Firefox gives a slightly different result. Again, the chat feed is almost simultaneous, maybe a fraction faster on Firefox. However, while the audio and video run fine on both Edge and Firefox, there is a 15 second lag on Firefox. Both are playing full 1080 video.

So there is a definite issue with how Firefox is buffering audio/video content. The 15 second delay between the audio video stream and the chat I am seeing today with Youtube is what I was experiencing on Twitch over the weekend. I noticed it on streams that include a chat window on the video. I wasn’t overly concerned about the latency issue, as long as I had audio and video. Both of those stopped working for Twitch on Firefox yesterday. It could be that Twitch has slightly richer content than Youtube and that’s why Twitch isn’t working at all on Firefox?

OK, so I’ve installed the Twitch app for Windows and done some side by side testing with that. Interestingly, the app has a couple of seconds latency over Edge but it works fine. I shall use the app for now but would prefer to use Firefox if the buffering/streaming issues can be resolved.

Firefox always uses excessive GPU memory when I watch video and livestream. about:memory shows that the explict GPU memory allocation is only about 200 MB but in the task manager the GPU memory usage is 1GB, and the latter doesn't decrease even if I close the tab. I suspect that this is a memory leak. I searched for Bugzilla and found a similar issue that has been existing for years: https://bugzilla.mozilla.org/show_bug.cgi?id=1386177

I keep a few windows open normally - each window has a number of tabs.

Every time I close firefox, whether it's to restart my mac or just to quit and re-open the application, every window opens up but I cannot see it. When I click the firefox icon in my dock, it shows the list of windows, but when I select one, nothing comes up on my screen.

The workaround I have found is to select the window and then go to the menubar and select VIEW > Enter Full Screen. This then maximizes the previously invisible window. I can then minimize the window and adjust the size as I prefer.

Why is this happening? This has been going on for about a year, through various Mac OS updates as well as Firefox updates.

In the last few days, I started having multiple web sites blocked with "SEC_ERROR_REVOKED_CERTIFICATE". They work fine with Google Chrome and Microsoft Edge, and I trust them. One example is http://www.wumb.org, a public radio station. I found nothing in Firefox Help to bypass this security flag and go to the page.

If there is a work-around, please make it show up when searching for SEC_ERROR_REVOKED_CERTIFICATE in Firefox Help. If there is no work-around, please add one. Otherwise, Firefox, my favorite browser, will quickly get a bad reputation.

Thanks,

Eliot Mayer Belmont, MA, USA

I recently upgraded graphics cards from an Nvidia GTX 1080 to an AMD 6900XT. Since then I noticed video stuttering on YouTube while playing 4k videos, especially noticeable at 4k/60FPS (example video ). Prior to the upgrade, I was not experiencing issues.

I monitored task manager as the video was playing to see CPU usage, which was sitting at 25% (4 core 8 thread CPU). GPU usage was fluctuating from 1-3%.

I tried resetting all the changed configuration options in about:config, removing all add-ons, "Refreshing" Firefox, and ultimately uninstalling and reinstalling. Nothing has worked so far except for "Troubleshooting mode" in about:support. In that mode, I experience no stuttering and GPU usage rises to 25-35% with the video playing, even before I reinstalled.

This most likely isn't a networking issue as the "Stats for nerds" option on the YouTube video shows I have 10-20s of buffer while the video is still stuttering.

I would like to find out what's different about Troubleshooting Mode that is not giving me the same problem while in "Normal Mode". Any advice?

Firefox worked perfectly, but since a few days I can't download anything. I'm using Mozilla Firefox snap for Ubuntu 22.04, version 110.0.1 (64 bits) canonical-002 - 1.0 With Chrome everything works perfectly so I assume it's a problem from Firefox.

When I open a PDF, a MP3 or any file, the "save" option doesn't display anything. Usually it opened a dialog where I could choose the folder where I wanted to download the file, but now I have nothing.

I have only 4 extensions: - adblocker ultimate - duckduckgo privacy essentials - vuejs dev tools - zotero connector

I always had them and I never encountered any problem.

Firefox needs a limit on memory usage. I was developing a tiny web page on Linux (PopOS) and accidentally created an endless loop in Javascript that ate memory (by growing an array). My entire OS became inoperable and had to be hard-rebooted. I was surprised this could happen due to Javascript (a sandboxed browser language), running in a web page (a sandboxed app) running in a Firefox browser that is supposed to protect users from the world wild web. One errant line of legal Javascript in HTML should not equate to a denial-of-service attack.

A sensible approach would be similar to the nice warning given when a script takes too much CPU, offering the user the choice to continue or stop the script when a tab exceeds some reasonable size: a fixed MB size, or say 10% of real RAM memory.

Ideally there should also be some hard limit calculated by Firefox according to the machine's available memory and Firefox's reasonable percentage of it. For example, maybe limit Firefox (all tabs combined) to 50% or maybe 75% of real memory, so that the O/S has a reasonable chance to remain operational so that a bad tab can be closed. Otherwise, Firefox could cause the O/S to lock up, resulting in data loss if there are tabs or other apps outside of Firefox that have unsaved changes.

Thanks for your consideration!

When I click on a "mailto" link, Firefox (my default browser) opens a new tab, then immediately close that tab without waiting for my to interact with it. No draft email is created. I see that other users have reported this behavior in the past, and I've tried the suggested remedies without success. Specifically, I ran Malwarebytes, and it found no threats. I then started Firefox (on the Mac) via the Option key (to start it without ad-ons), and that does not change the behavior. I'm on ver 99.0.1 of FF, which is up to date as of 4/20/2022 (today). My Mac OS is also up to date (ver 12.3.1). My Mac is a 2021 MacBookPro with the Apple M1 Pro chip. I use gmail. OTHER BROWSER (like Safari and Chrome) can open "mailto" links in a new tab in FF (which is my default browser, and used for mailto links) just fine! Here is an example of the URL that I see in a new FF tab opened via Chome: https://mail.google.com/mail/u/0/?fs=1&tf=cm&source=mailto&su=Cover+of+the+River+Journal&to=Steve+Mones%3Cstevenmones@optonline.net%3E Any help would be appreciated. - Thanks, Jim