Firefox Support Forum

So I've noticed that after putting my computer to sleep, upon return Firefox will be unable to load any videos from seemingly any site. The temporary solution to this is to reset my computer as sign offs, locks or returning to sleep do not clear the issue. I've tested on different browsers/sites and can confirm that this is exclusive to firefox. I have booted firefox in troubleshoot mode, cleared my history and given the sites time to load with no luck on any of them.

Is there a solution to this?

Frequent browser crashes on the VK website when viewing content. What is it and how to solve this problem? Drop a message: https://crash-stats.mozilla.org/report/index/8b7a6415-dc8a-43ac-a0fe-e1d780231126#tab-details

Hello,

I have been using Firefox Mozilla for many years. This morning it opened up fine. Then this afternoon (Dec 7, 2023) it would not open for me and when I try to open a new tab it says that it crashed.

I looked and I do have Firefox as my start up browser in my settings. Thank you for any advice on getting back to my favorite browser.

Sincerely, Sandy

Since snap firefox keeps crashing somehow, it just hangs.. i cleared cache and all, reinstalled it, but still.. ?

They say linux is a broken system (:

macOS 14.1.1 on an M2 with FF 120.

When going to sites such as nbcnews.com/now or https://toronto.ctvnews.ca, A/V sync is off by about a second.

This appears to be due to the volume being muted when video playback starts. Unpausing the video leads to the video freezing for a very brief moment, then the A/V sync is clearly incorrect.

This can be replicated on YouTube by loading a video, muting the video (if not muted already), refreshing the page (F5), allowing the video to play, then unmuting the video. The sync will be incorrect.

If the audio is unmuted when the video play back starts, this does not appear to happen.

Following this article has no impact: https://support.mozilla.org/en-US/kb/performance-settings, nor does setting media.hardware-video-decoding.enabled to false.

This issue does not occur on Microsoft Edge.

I have updated my Firefox on PC to the newest version available (version 120.0.0.8720 as of 24/11/23 00:30 UTC). Unfortunately whenever I try to open it, it loads a blank screen and then crashes, and brings up the crash reporter. This has happened every time I try and open Firefox, even during Troubleshoot mode. I have over 180+ tabs and thousands of bookmarks on my account that I do not want to lose (I have not used Refresh Firefox for this very reason) but if I can't even access them on my computer then what can I do?

Please help me, I want to know how to fix this and keep my tabs and history. I am desperate.

Hello! I need some help. Every since 4-6 months ago, Firefox has been extremely slow when I boot it up at first, with some page load times taking more than 10 minutes. Some fixes have seemed to work, but they never work permanently. From my testing, it is not the result of any extension and the issue persists in troubleshoot mode. What has not helped my testing is that, after enough restarts of Firefox, the problem goes away and web pages load quickly, so this has caused some false positives. Has anyone else had a similar problem they were able to fix? Should I try uninstalling Firefox and reinstalling it?

Hello, I have been a diehard Firefox user since it was still in Beta. I have been using computers personally since 1994 and professionally since 2004, doing Windows and Linux systems administration. I can and will do whatever (within limits) you need me to do to troubleshoot and resolve this issue, which is otherwise going to cause me to abandon this otherwise excellent browser, perhaps forever. The browser.cache.disk.capacity seems to work, but browser.cache.memory.capacity does not.

Why does firefox not respect the assigned values for browser memory cache (browser.cache.memory.capacity)? Is there anything I can do to limit the memory and processor usage of Firefox and its child processes? Is extension CPU/memory usage constrained by the application values? Is there a way to determine and/or limit the resource usage of extensions?

I have included a number of screenshots documenting its behavior and generated an about:memory report during "normal use". After configuring a number of system variables, I then attempted to determine its resource usage under heavy load.

Open the browser with a couple 2, 3 tabs: ~1GB memory usage Use the browser as "normal" (dozens tabs): ~2GB memory usage Open 100+ tabs from history: The CPU and memory resource usage increases until it consumes all available system resources despite configured values. After killing and restarting the process, the tabs have invisible titles in the extension and browser, and must be closed using Ctrl+W until only a few remain after which the browser can be used normally and again consumes ~1GB.

While I understand "just don't open so many tabs", under some circumstances such as poorly written websites, bugs, etc, even single sites may attempt to claim excessive resources. I sometimes run VMs and such on this machine and in order to retain a responsive system, cannot have applications consuming all of the available resources. I have found one proposed solution that uses an external application, is this the only way?

I am open to allowing Firefox to utilize more of the SSD storage (the 1GB limit was imposed for testing) and would be fine with increased slowness due to disk cache or refetching internetworked resources. However, none of the settings I have changed or attempts I have made appear to be able to limit the memory usage in any way. Additional included screenshots are linked above instead of as attachments due to number. I can share or generate additional reports to assist in troubleshooting.

Thank you! JackD

As of yesterday when I was running v119.0 I was able to screen capture streaming content from Hulu/Netflix etc, this morning after upgrading to v120.0 overnight, that capability is now lost. Video and still captures are just a black screen. Please fix!

I use Firefox for Mac. Often when I want to click on a link or complete an on-line form, a long list of unwanted suggestions pops up and orevents me doing this. Only by hitting Escape can I get control back.

By the way, I don't want any solution which involves clearing the cache, as I value that help.

Hi,

I'm getting errors when trying to make online card payments with Firefox. Things like, Invalid card number, not being able to type number in box provided, (No Cursor). It works ok on some sites but not others. However, if I switch to the Edge browser all transactions work perfectly. This has been happening for some time (Windows 11). I'm thinking this could be a bug but not sure.

Trevor

I have just reinstalled windows and then Firefox. If I click settings then a menu item it just freezes.

I have uninstalled and reinstalled.

Using Windows 11 Pro 22H2.

Any suggestions?

I have recently reinstalled windows and then installed Firefox. When I go to settings then click on an item Firefox freezes.

I have uninstalled and reinstalled (with revo uninstaller) but it still happens.

Would appreciate suggestions.

Firefox for some reason fails to print the document. Each time a “Print” button on viewer’s toolbar is clicked, an NS_ERROR_FAILURE error appears in the console (see screenshot). Other buttons work as intended. The PDF itself is rendered correctly. The only issue is printing in Firefox.

Alright first of all I already tried all the tipps about Proxy and basically anything network related. It also happened out of nowhere since I was using my computer the night before but when I tried opening Firefox the next day it wouldnt load any site, crashed if I tried too much or got really weird and even if it did load after a long time of trial and error it only lasted for a bit and didnt load fully either. I'm on version 108.0.2 as of the last time checking. Everything else seems to be updated as well especially since other browsers work perfectly fine. I also cant really click on much since as I said if I try too much it crashes or doesnt work as intended. I'll provide some pictures which might help the cash report just in case.

I'd also rather not try reinstalling everything since I have a lot of rather important tabs open and I dont wanna risk losing any of them since im not sure how well the Firefox sync. works in this case.

A friend (who knows even less about technology than me) has an old Dell Inspiron 1501 which has been running Linux Mint 18 Xfce, which is now unsupported. I'm beginning to regret it but just to keep it going for a couple of years I offered to update to Mint 20 Xfce, which is the last version listing 1 Gb as the minimum Ram (everything later or other version are 2 Gb or more), which is the most that system can use. Once the wifi was eventually working (old b43 broadcom driver) most things went fine (except Team Viewer, which works on another Mint 20 Xfce system, but that's not a question for here). However, she uses Yahoo mail, and for some reason just attempting to load the login page (login.yahoo.com) causes Firefox to crash (I mentioned Thunderbird in the title as I attempted to access Yahoo Mail with it, but because it needs to access the Yahoo Mail page (as I think this is now based on App codes rather than passwords), and doing that crashed Thunderbird also). I'm pretty sure I have methodically gone through all the troubleshooting steps on https://support.mozilla.org/en-US/kb/troubleshoot-and-diagnose-firefox-problems (clear cookies & cache by deleting history; clear startup cache; refresh; reinstall; new profile). Firefox doesn't crash in Troubleshoot mode, despite the fact is seems to still use hardware acceleration, even though I thought it would disable that. Hence, I'm at the end of what I know to try (and that's just from following the guide, I am not an expert) and would be grateful for any help anyone can offer. I attach an image that lists all the submitted crash reports, as they will refer to slightly different conditions as I tried all the options mentioned above. I'm using my own PC to submit this (so any hardware & system data submitted by this web-form won't be relevant), not the Inspiron 1501 that has the issue. I can open the Yahoo mail page on this machine (same version of Firefox) and also on the Inspiron 1501 using Chrome (but there was a different reason relating to security why we couldn't log in via that). Would really like to get Firefox (and Thunderbird) working on the laptop, if possible.

Hail:

System Software: Win11Ent_x64 v22H2 (b: 22621.2283) MFF v18.5.0.0

No matter what I try, my MFF keeps crashing at startup. For some reason, it tries to open 2 pages the windows at the same time, which is illogical. I deleted firstly my: sessionstore.jsonlz4 logins.json to no avail.

Then I tried to open MFF through elevated CMD with the command: C:\Program Files\Mozilla Firefox\firefox.exe -safe-mode Again, 2 windows pop crashing immediately.

I do not understand why all of the sudden, it tries to open 2 different instances at once. This makes no sense. I am out of ideas, having tried many an option found on Google, but which none give me a solution.

If anyone has an idea, I would be quite darn thankful. This MSEdge crap that I need to use now is not quite my thing.

Thank you. Ke'Ylan