Firefox Community Forum

I've noticed that Firefox can sometimes consume a significant amount of RAM when I have multiple tabs open, especially when browsing websites with images, videos, and other media.

I would like to understand:

• Does Firefox handle memory differently compared to other browsers?
• Which built-in Firefox settings can help reduce memory usage?
• Does enabling or disabling hardware acceleration make a difference?

Is there a recommended way to identify which tabs or extensions are consuming the most memory?

I'd appreciate any practical tips or recommended settings to improve Firefox's performance without affecting the browsing experience.

The GPU isn't working properly... I've attached screenshots of the browser I have installed. If needed, I can take any logs, etc. It's very frustrating - I have a fairly old processor and its GPU isn't working properly! If needed, I can create a thread on the forum and attach any information about my system. Sorry if I'm in the wrong place! Best regards, and thank you for the best browser in the world!

Hallo, seit dem letzte Update laden viele Websites unheimlich lange oder werden abgebrochen. Sogar "https://auth.mozilla.auth0.com/login" ist betroffen. Diese Probleme sind wirklich neu, vorher lief alles reibungslos. Ich habe garantiert keine verbotenen Seiten oder Programme aufgerufen/installiert. Meine Browserdaten sind auf ein absolutes Minimum reduziert (17 Cookies/Websitedaten), die Chronik wird täglich gelöscht. Kann ich die aktuelle Version entfernen bzw. gegen eine ältere ersetzen?

Mozilla Firefox is always crash. Always rectify after create the new profile. Hang also occur. Firefox is not responding. Old Firefox is running in background. Give me the permanent Solution.

ive just downloaded firefox and its giving me performance issues I play gta 5 all day with my chrome tabs open maybe more then 5 sometimes more then 8 and When I had more then 4 or 5 tabs my gta 5 started to lag when i opened my task manager i see that Firefox is using more then my Game.

Hey,

I have this visual bug on Firefox where spaces on my screen get blurred, flicker or are just another color than they're supposed to be. This happens on every website and even on the menu bar or when I hover over bookmarks. It's hard to describe, so I attached some screenshots.

I've already tried: Restarting the laptop, restarting Firefox, opened Firefox as admin, cleaned Firefox and went to "about:support" and gone into the troubleshooting mode. When I'm in troubleshooting mode, the bug disappears but as soon as I restart Firefox, it's there again.

Sometimes the bug changes when I scroll or move my cursor, as you can see on the two screenshots from Twitter (X). Sometimes it's barely noticable, like on the PDF website and sometimes I can't even read text fields as in the chess.com screenshot...

I am using YouTube. One singular tab of YouTube takes up 4 GB of ram. Two tabs take 8 GB. Having more than two tabs quite literally provides me 20 GB of memory usage. This is preposterous.

The fixes I have tried is

- Disabling all extensions; this does not help in the slightest. - Refreshing the startup cache - helped first 10 minutes went from 400mb to later 5 gb (one tab) - Refreshing the Firefox cache - helped also first 10 min, and then memory leakage came back. - Disabled YouTube Ambience - did not help.

I have a top-end gaming computer, this should not be an issue.

I am not sure what to do from here on out, please advice

This happened once before - then cleared after the next update. Now, after a recent update, the browser display is unstable again. Not a problem with any other browser - so it's NOT the computer. Any suggestions ?

Thanx, Dennis

After Firefox & Thunderbird update & Windows (11) update, it takes ages for the email programs to open and the web pages to open. Tried everything, to no avail. Any ideas apart from uninstalling and starting again? The imap lookup takes ages and when opening website pages it takes ages. Googles is very quick to open.

Since Firefox 157, each version is stealing more and more RAM. Why? My Windows XI, on HP with an AMD processor, are constantly losing more and RAM to Firefox. Is there any advice? Or must I suspend all updates?

Hi everyone!

I enjoy using Firefox, but I've noticed that browsers can consume a significant amount of memory when multiple tabs are open simultaneously.

I'd like to know if there are any built-in Firefox features or recommended settings that can help reduce memory usage while maintaining good browsing performance.

Are there any specific settings, troubleshooting steps, or features you recommend for managing memory usage without having to close important tabs?

I'd appreciate hearing about your experiences and any practical suggestions. Thanks in advance!

What causes Firefox to do a refresh. I stepped away from my PC for 15 minutes and found FIrefox doing a refresh when I returned. Lost all of settings. Putting the icons on tool bar where you want them is one of the frustrating things I have done in a long time and now, I get to make all my settings changes over again plus try to get the tool bar icons where I want them.

Firefox runs real slow when I changed screens. Sometimes many seconds, things just quit working screen goes blank.

Sometimes it goes to wrong screen. I do not know how to reinstall or update. I would like to talk to a person I am old. I have no technical ability at all. I am confused by all instructions online. Please help me