Diễn đàn hỗ trợ Firefox

Over the past 2 or 3 weeks, I've noticed that firefox tabs are crashing more often out of nowhere.

https://crash-stats.mozilla.org/report/index/4a42f4cd-2203-40ba-a40c-616590251210#tab-details

Here's one of the links for the most recent tab crash. Other crashes pretty much were all the same. I can't read or understand this, so I was hoping someone who can is able to tell me what is wrong.

I fear that it might be hardware related, as I've had tabs also crash on Edge and on a new install of Firefox Developer Edition (which I downloaded simply to test if things crashed there as well.) I've also noticed programs like Discord & Elgato Wave Link sometimes randomly crashing as well - but I'm unsure how to pull logs for those, Firefox was the easiest.

My laptop's hardware specs are as follows:

Lenovo Legion Pro 5 - 16IRX9 Processor: Intel Core i9-14900HX (2.2GHz) Installed RAM: 32 GB GPU: GeForce RTX 4070 Laptop GPU Windows 11

If you need more information, please let me know.

Here are some previous crashes that I've reported as well:

https://crash-stats.mozilla.org/report/index/755c394a-584f-4d2a-8c59-3c39d0251210 https://crash-stats.mozilla.org/report/index/0415701b-4128-4717-9bc8-445cb0251209

Hi everyone,

I’ve been using Firefox as my primary browser and overall it works great, but I’ve noticed a slowdown pattern during longer sessions and wanted to compare notes with the community.

After running the browser for several hours with many tabs open, I sometimes see delayed responses when switching tabs, typing in text fields, or opening menus. Nothing crashes, but the interface feels heavier until I restart the browser. Once restarted, performance goes back to normal.

I’ve already tried reviewing extensions, disabling a few that I don’t use often, and checking memory usage in about:performance. The numbers go up as expected with more tabs, but I’m not sure how to judge what is considered normal versus problematic.

Because the issue improves after restart, I’m wondering whether this is typical resource buildup, session handling, or something specific I should be tuning.

How do experienced users usually approach diagnosing gradual slowdowns like this? Are there particular indicators in the built-in tools that suggest a real problem rather than expected behavior?

While reading more about how browsers manage memory over time, I found this general explanation helpful for understanding the bigger picture:

I have Norton 360. I just reinstalled a brother printer and now I get the "Your browser is being managed by your organization". While I sync with my laptop, as others have said, I'm not an organization. There is an Enterprise policy .

Active Policy Name Policy Value ExtensionSettings {"firefoxhpsureclicksecurebrowsing@bromium.com":{"installation_mode":"blocked"},"firefoxhpwolfsecurityextension@bromium.com":{"install_url":"https://addons.bromium-online.com/wsx.xpi","installation_mode":"normal_installed"}}

I can't store or edit any bookmarks. How do I correct this? I need answers in very simple terms as I am very much a layman with computers. Thank You!

The problem that is occurring with Firefox is one website American Airlines, I can not log in to my account with Firefox, however Chrome has no problem logging in. Running Windows 11 up to date Firefox 147.03 64 bit. below is the error message I get Access Denied You don't have permission to access "http://www.aa.com/homePage.do" on this server.

Reference #18.450c3417.1770423478.9f1ea295

https://errors.edgesuite.net/18.450c3417.1770423478.9f1ea295

Thanks for any help. Rick

Bought a new laptop and I had my old Dell laptop transfer all my data to my new HP. My email account went thru fine. But for some unknown reason, I couldn't get my Firefox browser transferred, and I NEED to get my saved passwords from the Firefox Master Password manager.

I think I made a big mistake after data was transferred and I started setting up the HP -- (feel like I got 'tricked' into using Microsoft Edge browser) and didn't know how to get Firefox browser so could get my passwords. So unfortunately, I ended up clicking Download Firefox browser and it was a brand new browser like I was a new first-time user as it was 'blank'....like I would have to start completely over. I have been a long-time Mozilla Firefox browser user. I have been desperately and frustratingly trying to retrieve my Original Firefox Browser that has ALL my info that was so handy and easy to use.

PLEASE EMAIL ME AT:: [edited email from community support forum] I do Not have a mobile phone Thanks for helping me retrieve my Mozilla Firefox Browser

So I guess my Firefox update to ver. 147 from 146 by its auto update feature, but I realized all the past personal data (ie, history, cookies, passwords, profile, etc) was gone.

I have Mozilla Account (I think it's the same as Firefox Account back in the old days), so my personal data is now retrieved from some device as far as possible, but I lost local personal settings like Shortcuts on the main page on my laptop,p which is the main device to do everything.

I can't help what happened to me, and I will rebuild what I used to be on that day, but I am curious if it's just me, or there is some logic to cause this data loss.

I am hoping that a permanent fix can be made to the bookmarks toolbar issue where another program may be using a file that allows it to show at the top of my screen. It keeps disappearing and I complete a fix and it disappears later in the week. Thanks Brian

Firefox won't save my gmail password. I don't know how that is done. When I sign in to [edited from public] @gmail.com, firefox never asks me to save the password. What can I do?

I set up my new tab (after the Home page which was Google News for my profile) to show shortcuts in four rows. Clicking on these shortcuts opened the URL for an account or webpage. I "pinned" or "dismissed' these shortcuts over time. Somehow, I lost every shortcut and cannot seem to figure out how to recreate this.

Since update yesterday, new tab is empty. Whatever I do, open new tab, open new window, go to `about:newtab` manually, it does not load anything. The view is totally blank. I can navigate to other pages fine as it should though. Only New Tab view is broken. Diagnostic mode does not work. I don't have plugins that would affect New Tab anyways.

Please return my Computer to using Firefox default as my browser as it was 2/01 /2026.Ive tried several times to do this w/o success . I was using windows 11 and have been trying to get rid of MS365 which I never used but have been charged for a solution , but have been blocked and refused cancellation after they asked me to change my email address and PW . Insanely confusing !

I am unable to log into RBS site on Firefox but I can on Chrome and Edge. What's the problem and how do I fix it? This has only happened in the last couple of days.

This extension used to work fine for me on youtube but no longer does , it goes through the motions saying its downloading but the resulting file is a 0 bytes , rather than megabytes , ive tried downloading each files size 1080p 720p etc but the result is the same , at first i thought you done this so people would by the pro version but of course thats clearly not the case as no one would buy something is not working , so im not sure what the problem is i may reinstall it just to see if that works , im hoping youtube have caught on and blocking it somehow anyway thanks in advance

William

В России блокируют Firefox, по этому авто обновления не устанавливаются, я бы хотел получить ip и url серверов от куда скачиваются обновления. Это поможет обойти блокировку и восстановить работу firefox в России