Firefox Community Forum

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?

Bonjour

Depuis 72h Video DownloadHelper ne fonctionne plus du tout sur mon PC. Il ne détecte plus aucune vidéo quelque soit le site, et même si la vidéo est en cours de lecture. Je suis pourtant titulaire d'une licence est je n'ai eu aucun souci avec auparavant.

J'ai tenté de le désinstaller et de de réinstaller sans succès

Merci pour votre aide

Isabelle B.

Videos over a certain resolution won't play on Twitter/X. Anything 1080 and over vertical won't play. I get audio, but not video. If I use Maxthon (Chrome) I can see the video. I've downloaded the video files and those that are 1080 vertical are the ones that won't play in Firefox. In the picture I'm sending, you can see that Firefox is stuck on the very beginning of the video and the Maxthon video has started, hence the subtitles. Is there a setting in Firefox that will allow me to watch these videos? Thank you.

I have a new macbook air running Sequoia 15.3.2, firefox is up to date, my battery which should technically last about 12 hours and I only get 5. Ran through everything with Apple and they said it is a Firefox issues. I don't have any extensions, add on etc. Thoughts?

Hi, for some reason firefox has begin crashing this past week, when I'm on Soundcloud and I press the play button. Today it also crashes when I try to by a bus ticket on Flixbus.dk, this has not happened before.

I looked up the troubleshooting page concerning crashes and I tried to go on the sites in troubleshoot mode, it still crashes.

I have the reports here: bp-df051f75-8783-417f-98c1-f75b90250325

bp-c87b457c-be5c-409a-87cf-ad9f30250325

I believe the first one is for Soundcloud, the second one is for Flixbus.

Thank you!

I was in the process of writing a somewhat lengthy response and went to another webpage or webpages and when I went back to the webpage where I was writing the somewhat lengthy response, the webpage was completely blank! The Back and Forward buttons were grayed out, Refreshing the webpage did nothing so there was NO way to get the webpage back. Interestingly, when I hover over the URL, at the end of the URL for the webpage, it had "about:blank." Things like this are very frustrating and waste a lot of my time.

In addition, another problem I reported on 3/20/25 (link is: A webpage I just closed recently is not listed Back arrow issue) has still no response.

Also another frustrating thing about the Firefox browser is that at times the Bookmarks sidebar disappears.

I need a reliable browser, not one that sort of works! I request that these issues be addressed soon.

Hello, ever since I upgraded MacOS to 15.3.1 and Firefox to 135.0.1 the top menu bar seems to disappear. I do not know which is the culprit, but on MacRumors (https://www.macrumors.com/) you'll find several others with the same experience.

My personal observation is that it seems to happen on various Silicon hardware (tried 3) and when multiple tabs are active.

The bug is no showstopper, but to proceed you got to click on the (invisible) menu bar in the upper left. Thanks for reading.

JOOP!

Apologies, I have to write this on mobile because among other pages Firefox will not open for me now, THIS IS ONE OF THEM. Google is a black square (opens fine in chrome). So are multiple other pages. I can open new tabs, but clicking on them to actually navigate to them does nothing. Has anyone else had this problem???? I don't want to go back to chrome but Firefox is completely unusable right now.

Hi all. I recently did a manual clear of cookies and afterwards, I've seen two strange issues pop up.

The first was while I was booking hotels on Expedia, it would not allow me to complete the booking where earlier in the same day it did. It would simply do nothing when I clicked the final button. I swapped over to chrome and it worked totally fine, so it was not the sites issue.

The other is in images. I will do an image search, and typically on the big wall of thumbnails, if you click one, it will have a preview of the image at a larger size and the link to the source site, but now it does nothing if I click the image, and I have to right click and opening in new tab to use the image to go to the site. This can be temporarily fixed by clicking the padlock in the address bar, clearing cookies on the site and reloading, but then as soon as I do a new image search, it's back to the unresponsive clicks.

I have ublock origins plugin and Malwarebytes browser guard running,but have never had an issue due to those before and made no changes with them. Embedded video still works totally fine, it's only online purchases and image search that I've seen problems.

I have cleared cookies manually before without this issue. I have refreshed the installation and it has not fixed it. I'm really not sure what got knocked loose, but I am sure that is when things got weird on me.

Hi, I ran a Firefox update which I guess I downloaded yesterday but now Firefox won't fully load new tabs with my usual view of stories. I don't know if that's the only part that's broken or what....I'm not geeky enough to say. The "thought provoking stories" section just looks like its in a long process trying to connect with something.... all other windows I'd left pinned and recent activity shortcuts at the bottom of a new tab work.

Still waiting for an answer to the above question. Why does the page jump back to the top when I want to open a link in a new tab? The link is halfway down a page but when I do a right/left click it jumps and invariably opens the link a few articles above the actual article I want to read. This had been happening for months now and nobody has bother to give a solution.