I-Firefox Community Forum

I get REAL tired by the amount of resources Firefox eats up with each open window. For whatever reason, having multiple windows open prevents Facebook from loading. I'll get 1 story and a "shorts" bar but THAT'S IT. Even clicking the story to rate or comment does nothing. If I start to delete windows; it will decrease the memory usage and then it will open.

However, I DO NOT WANT TO CLOSE MY WINDOWS IN ORDER TO OPEN FACEBOOK! Firefox should not be eating up that many resources. The open windows are of text and/or picture archives. There is no sound or video playing in the multiple windows open. My system literally has 128 gigs of ram memory so it seems very odd to me that Firefox is using between 11-13% with nothing running in the 15 windows I have open.

Is anyone looking into this? I found an article that told me to remove some cash files and it seemed to fix the issue but it continues to reoccur. Some apps such as MS360 Outlook seem to trigger it, but if it was truly just a corrupt cache issue then cleaning the cash/profile once should have fixed the issue. Instead its become a constant pain in the *** and I'm tempted to find another browser. Seems very recent as well as I've never had issues with firefox before.

Ubuntu 24 Mozilla Firefox 151.0.3

Kubuntu 24.04 with various Firefox iterations including 149.0.2. It happens on stand alone, snap and flatpak versions. I do not know what triggers this problem. As far as can tell it only occurs on Wayland and not on 'X'. .... After using Firefox normally for a while I first notice the problem when I can't click into the separate search box on the toolbar, then I find I can't drag the tabs around as per usual. Then, if I click on a toolbar icon it does not respond. In summary, the toolbar becomes inoperative. I do have 9 pinned tabs but I can often have many more standard tabs up before I ever notice the problem and, today, when it occurred I only had 3 additional tabs up. So, I can't tie the problem to the number of tabs.

Youtube playback causes Firefox to freeze up. Just the tab that is playing, not the entire browser. I have reinstalled firefox, used recommended settings and I have no addons or extensions. Other browsers work fine and there is nothing wrong with my computer. It is only firefox. This has been happening for about a month now.

just agreed to the new update for firefox and now my scroll bars will not work properly. they keep jumping to the far right hand side of page and when moving the scroll bar to the left so I can view the whole thing it will not stay. it jumps back to the right side.

Hi everyone,

I’ve been experiencing performance issues while using Mozilla Firefox, especially when working with browser-based tools that handle file processing.

When I try to upload or process larger files (like PDFs), I notice the following:

• Firefox becomes slow or laggy • The tab sometimes freezes temporarily • File processing either takes too long or doesn’t complete • Occasionally I get a “page unresponsive” message

For testing, I used an online tool: [ONLINE EDITOR]

The issue seems more noticeable with larger files or when multiple tabs are open.

What I’ve tried:

• Restarting Firefox • Clearing cache and cookies • Disabling extensions • Testing in Troubleshoot Mode • Updating Firefox to the latest version

The same tasks seem to work slightly better in other browsers, so I’m wondering if this is related to Firefox performance or settings.

Question:

Is there any way to improve Firefox performance for heavy browser-based tasks like file processing? Are there specific settings I should adjust?

Thanks in advance!

MacOS, M2 2023, fully up to date firefox.

Sometimes I'm using firefox and it just stops loading pages, internet is fine. Other browsers work. I look at my activity monitor and nearly 100% of my 32GB of ram is being consumed by various firefox processes. A lot of those processes seem to be associated with youtube. This problem usually, but not always, is resolved by restarting firefox. But this shouldn't be happening. I have a lot of tabs open sometimes, but it's not that excessive. And most certainly not 32GB worth and preventing my computer from doing a google search.

If there's a debugging thing I can do to post system logs, let me know and I'll post them next time this happens. I'll be away from my computer until early July, so around that time.

I recently (within the last month) gotten an update in windows 11 and all of a sudden firefox slows way down and eventually stops doing anything...Any ideas what I can do to get firefox to actually work all the time??? I am using firefox 149.0 and it says it is up to date...

Lately I can not click all of my browser tabs, only some of them unless I do not have the browser maximized on the screen. If I make is smaller then I can click all of the tabs. Since the recent Firefox update I can't find a hardware acceleration setting to toggle off to see if it helps.

1. There used to be a choice in settings for Firefix mouse control to be optional. It is no longer available and apparently FF has created default mouse behavior.

The mouse behavior has become errant in a variety of ways. It interferes with everything online and started doing the same on the desktop.

The wheel is configured for three lines at a time on desktop. I do not want the mouse wheel to be doing anything else. I want either or both mouse buttons to open menus and function normally with links, copy and paste.

When looking in about:config the extensive number of configured mouse defaults is shocking. it is impossible to determine how to disable or delete any of them.

It has become impossible to scroll with the wheel and the scrollbar because the mouse jumps all over the page as if possessed.

It is impossible to scroll 3 lines at a time with the wheel, instead the mouse goes up and down and jumps to the top. Changing the number of scrolling lines on Desktop and in about: config so they are both 3 did not solve the problem. Tried changing both to 5 . . . no joy.

Expandable menus no longer open on some websites.

It has also become impossible to us the scrollbar effectively, instead the same behavior manifests as it does with the wheel - the mouse is jerky, going up and down and jumping to the top of the page, unpredictably.

Either way the mouse gets stuck moving up and down. After having successfully scrolled past where it was previously it returns, repeatedly, to the same previous lines each time I try to scroll further - in an endless loop.

If the mouse does functional, briefly, then half way down the page it starts misbehaving again. I already replaced the mouse several months back when the problem started, however, it was not constant. Then it started again with the new (usb) mouse. (Yes, I've cleaned it. No it is not worn out yet.)

2. Via a search I did find a list of adjustments to make in about:config while learning unexpected mouse behavior had become a common problem. I made at least 20 adjustments, and amazingly, there was no longer a problem! Smooth scrolling, no problems. However, after using the browser, closing and opening it numerous times, the errant behavior returned.

3. If there is no way to completely turn off FF mouse control, or use about:config to disable it entirely, then what is the last FF version that allowed saying "no" to what used to be optional mouse control, so it is possible to change back to it? If there is no other way to solve the problem, that should do it.

Any suggestions or solutions appreciated.

16 GB memory, 500 GB SSD. (chose to not install Windows 11 version 23 onward - so in the 22 gray zone that is both a windows 10 install and a windows 11 install - this is the windows 11 install).

I am having a problem with Firefox on Linux Mint. Firefox has completely stopped responding. Even the buttons like close, back, refresh, or menu do not work. The whole browser has become frozen. Shutting down or restarting the system doesn't work.

Firefox version: Mozilla Firefox 151.0 My system: https://termbin.com/s387

When I log into Google, my browser freezes. I can't close the browser, can't even restart the computer — and this happens every single time I try to sign into my account, making the browser essentially unusable.

Firefox has definitely gone downhill imho. Too many very frequent updates after browser slows down to a virtual standstill. I have seriously been looking at other browsers. What's the story?