Firefox 社群討論區

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!

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?

For about 1 month now whenever I perform a google search using the address bar I get no response. I have to close and reopen FF afew times untill it performs the search.

This occurs in my synced account in any of my Wiondows devices. Troubleshoot mode makes no difference.

I've uninstalled all 3 plugins which iI use but to no avail.

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.

I'm working onoptimizing a web application optimizing a web application and noticing some performance lags (e.g., slow page load and laggy interactions) specifically in Firefox.

I’ve used Chrome DevTools for performance profiling before, but I’m not as familiar with Firefox’s tools. I see there's a Performance tab, but I’m not sure how to interpret the flame chart, event markers, or how to pinpoint what's causing the slowness.

Can someone guide me through the process of debugging performance issues debugging performance issues in Firefox Developer Tools? Specifically:

How to profile JavaScript execution?

How to identify slow rendering or layout shifts?

Any tips for using the memory and network panels effectively?

I’m using Firefox version XX.X on [OS], and this is a React-based app.

Any tips, resources, or walkthroughs would be appreciated!

I use Yahoo as my homepage and access it through Mozilla. Normally it loads in mere seconds. Last night and today it is taking extremely long to load and in some cases it has timed out. When it does load, all the pictures and other features are not included and either don't load or load much later.

I tried to load Yahoo from MIcrosoft Edge and it loaded perfectly. I am assuming there is an issue with Mozilla?

Thanks for looking into this matter and letting me know.

David Broemmelsick

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

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.

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

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.

In my browsing video sites (for example, bilibili.com) there will be frequent lag. The same network conditions in Firefox just can't load or load slowly. There are only a few plug-ins. I don't know why the more updated it is, the more stuck it becomes. Or you could come out with a lite version. I don't need too many complicated features. Thank you.

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?