Firefox Community Forum

I am having a lot of difficulty opening websites ( NYtimes, Washington Post) they takes minutes to open. Sometimes minutes more to open article. ATT says line service is fine. NYT says it service is fine and it works on EDGE Any thoughts?

Hi all! Happy Firefox user for over 20 years here. Recently I've had to switch to Chrome for one of my use cases, Google Cloud Monitoring dashboards. They're evidently JS- and data-heavy, and they're often unusably slow in Firefox. I often see delays of 10s or seconds when clicking any button or link, rendering data, or doing anything else. They also seem to get slower the longer their tab is open in the browser. They're way more usable in Chrome; maybe not perfect, but drastically better.

Any thoughts?

I've used about:performance to take a profile on https://profiler.firefox.com/, and uploaded it to share.firefox.dev , and I know it claims to sanitize personal info, but I'm still a bit leery of posting the link publicly. Happy to share it with a Mozilla employee if that would help.

I'm running some devices with windows 10 and 11. All have same most current version of Firefox installed. There is no issue on Win10. With any Win 11 device, some pages as google.com take about 60s until they start loading. Once started the behavior disappears until restart of the browser (even tab gets closed). I'm using classic DNS (no DoH).

Here I've uploaded the profile: https://share.firefox.dev/4coxRg4

On Network it say's "DNS request 6ms", "after DNS request 60000ms".

With wireshark I can see different kind of DNS request on Win10 A and AAA gets request, on Win11 HTTPS gets request - no idea if that makes the difference as there in no delay in the response anyway.

Any idea how to troubleshoot this?

When browsing on Youtube it takes a long time to load and display videos. Firefox seems to be searching for a long time before finally displaying videos. I've noticed that advertisements aren't displaying before videos anymore. Sometimes when video does finally play it isn't starting at the beginning, cutting out part of the video.

I've tried clearing caches, and history.

Am not being hyperbole but I swear to God I love Firefox more than anything. Okay, let's get to the main topic. I have a problem with Firefox on my pc, whenever I open Firefox one of my CPU thread is dying and its causes brutally lags. I know I have a potato rig but at least fix this browser as smooth as before. After I having a problem with dying threads whenever I open a tab and going to a website I desire it took so long isgt. I thought my pc was the problem one and I think "Ah I should upgrade my pc, but I still in debt" and it turns out the Firefox was the main problem.

Please Firefox fix this for me, don't suffer me more. I'm migrating to Chrome for a while cuz the Chrome didn't kill my CPU thread (I tested it for almost 2 weeks).

I attached you images from time to time, hope you could understand it! ;)

Why does it take up to an hour for apps like facebook or youtube and others to open after firefox updates. What can I do to fix this? I'm very tempted to delete firefox altogether and will if this issue can't be solved.

Certain webpages (which load without problem in Opera) will fully load and then immediately become blank as if it never loaded. If I hit "reload" the same thing happens, it loads and then goes blank. This is only certain webpages but here is one for example:

https://newrepublic.com/post/193132/white-house-leavitt-deny-war-plans-group-chat

Again, this is not a problem in Opera. But Firefox has been my main browser for many years now, and I'd rather not switch if I don't have to.

Thank you. Malcolm Garris

Hello:

Over the past few weeks I notice Firefox lagging in performance -- e.g., pages taking too long to load. Simple profiling tells me that most time seems to be going in "WebRender display list", and "DisplayList building". Sometimes, it is so slow that I have to use other browsers.

I uploaded the profile here: https://share.firefox.dev/4j6f5Mp

My machine:

System:

 Host: mark Kernel: 6.8.0-56-generic arch: x86_64 bits: 64
 Desktop: Cinnamon v: 6.4.8 Distro: Linux Mint 22.1 Xia

Machine:

 Type: Desktop System: LENOVO product: 90L50018GE v: IdeaCentre T540-15AMA G
   serial: <superuser required>
 Mobo: LENOVO model: 3148 v: NOK serial: <superuser required> UEFI: LENOVO
   v: M2CKT53A date: 03/20/2024

CPU:

 Info: 6-core model: AMD Ryzen 5 3600 bits: 64 type: MT MCP cache: L2: 3 MiB
 Speed (MHz): avg: 2631 min/max: 2200/4208 cores: 1: 2057 2: 3942 3: 3600
   4: 2200 5: 2200 6: 2200 7: 2200 8: 3190 9: 2200 10: 2200 11: 2200 12: 3389

Graphics:

 Device-1: NVIDIA TU117 [GeForce GTX 1650] driver: nvidia v: 550.120
 Display: x11 server: X.Org v: 21.1.11 with: Xwayland v: 23.2.6 driver: X:
   loaded: N/A failed: nvidia gpu: nvidia,nvidia-nvswitch resolution:
   1: 1920x1080~60Hz 2: 1920x1080~60Hz
 API: EGL v: 1.5 drivers: nvidia,swrast platforms: x11,surfaceless,device
 API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: nvidia mesa v: 550.120
   renderer: NVIDIA GeForce GTX 1650/PCIe/SSE2

Any suggestions?

When loading webpages, it will often take 60-90 seconds to load the page. I've only seen this happen when loading the page for the first time, once it loads navigating through subpages is seamless. It doesn't seem to be tied to any particular domain, I've had it happen randomly on gaming websites, tech websites, even google searches. The most notable coincidence is that in the networking tab of the developer console, it always(?) takes almost exactly 30 seconds on DNS resolution, 30 seconds on Connecting, sometimes a 30s Blocking element, and then the remainder is near instantaneous; screenshot attached. My network is fine, I'm able to play low-latency games without issue, and Chrome is not exhibiting the same behaviour.

Things I've tried to resolve:

• Restarting computer -- issue has been persisting for months
• Created a new Firefox profile -- still showing the same behaviour
• Disabling all addons/testing Troubleshoot Mode
• Proxy settings in Firefox -- No Proxy and System proxy settings are both showing the behaviour
• Disabling DNS over HTTPS

Any help would be greatly appreciated.

some times the Youtube video's won't load i thought that it's my network glitch but my network is good only in this browser the videos won't load sometimes and some website's like amazon also won't load some times it keeps on loading but nothing will be loaded . i need to restart the whole browser to make it work please fix it Zen browser .

When I try to download anything Firefox Caps my download speed at 10MB/s Other browsers don't. I tried, Edge, Chrome, Etc... they all give me access to my full Gigabit speed. I've attached 2 screenshots with a SpeedTest comparison.

Firefox: 90mbps Edge: 630mbps

Video is not loaded on youtube, I have the whole site, but when i go to any video, I have an endless download, normal video download will be one of 30, I don't know what to do with this At the same time, such a problem is not observed in other browsers, but I want to use Firefox Please help me

Trying to browse ebay using Firefox. The pages have become really slow when loading.When scrolling down the page is blank then slowly populates as I scroll down the page. I've just tried microsoft edge and there is no problem.

updated to latest firefox 136.0.1 today and several web pages will not load on first attempt. yahoo.com, google along others indicate that page is preventing this site from loading. I have not encountered any issue with Chrome. Have not encountered this issue with firefox previously but very frustrated user. I any attempted to start firefox in debug mode without any extensions or tools and firefox still encountered the same issue. Any recommendation would be appreciated.

Why does it take Firefox so long to load after an update? sometimes it will take upwards of 20 minutes. ON some occasions I have to close the browser and start it numerous times!

I have tried several online suggestions to speed up page load on my Firefox browser. None have improved my situation. I can start a web page load on Firefox while simultaneously working from another browser. The other browsers load and I am able to complete my business before Firefox even loads. I am quite frustrated by this as I have used Firefox for as long as I can remember.

I am using Windows 11

When I restart the system after a refresh or after shutting down, Mozilla takes FOREVER to connect/load webpages. (I can get on-line immediately after a reboot using Chrome, however). It is extremely frustrating as I have to leave the system on a webpage all day long and over-night so as not to have to go through the hassle of trying to get it to connect after an absence. Even when Mozilla requests I re-start for an update, it still takes forever. what is causing this and how can I fix it? Be advised, I'm not a computer whizz so please explain in non-tech talk. Thank you, Joe

This isn't a question but rather a response to the latest iteration of Firefox. Whatever your team did in this new install has made a dramatic difference in response time. I notice it most when signing in to my Yahoo email account, the delay time is down to 2 seconds between hitting Enter and the change. This is terrific since it previously took 20-30 seconds to happen. Thanks very much for your work, folks.

I have been using Firefox ON this desktop since Feb. 13, 2019 But used Firefox way before that on other desktops. I just saved my profile from one to another and in 2019 I got a new computer again and I never have cleaned it up. I did searches on how too but nothing on how to get rid of passwords and user names logins on websites I no longer used except for one at a time, that will take me weeks,months to clean Firefox up, and how to clean up bookmarks the same, and so on. Today I saved a copy of my profile folder and was shocked to see it is almost 2GB. It explains why some days Firefox doesn't load properly, and why getting stuff done on here is more than a feature, it is bad chore I really need to tackle this and hope you guys can help me out on getting this mess cleaned up. Thanks for your time and support.