Firefox Support Forum

Firefox is always using HUGE amount of my RAM with several window opened far more than my tabs.

But since the last update this has really got out of hand, crashing my apps. (Windows 10, 64 bit Desktop PC)

I work with media apps which DO require a lot of memory, such as Adobe Audition, and last night Audition first slowed down and then crashed while I was rushing to finish an urgent project.

I thought what the heck is going on - opened Task Manager - and lo and behold Firefox had several windows running taking up 85% of memory which I needed for my app!! I had only 5 -6 tabs opened in the browser - this is insane! every new update you release is more memory hungry - and I do NOT have ANY extensions and my computer is quite powerful designed for media work.

I found online advice to click on Minimise Memory button in about:memory - which I did.

But this should not be an OPTION which you have to guess how to disable! This has to be included in the Firefox SETTINGS!

So now, until you REDUCE this memory hunger I have to close the browser while working on my apps, or use another browser altogether.

Are there Firefox developers on this forum to reply?

This is Mind-Numbingly Frustrating!!! I try to load an ordinary website, in this case, DiscountTire.com. I can see that it Firefox tries to load the site, but won't. This is a VERY LARGE COMPANY. But, as is frequently the case, Firefox will not load the site. I try to allow it in Privacy section, but to no avail. And yes, it is an https site. What Gives? This happens repeatedly for many (MANY) websites; HOW DO I TELL FIREFOX THAT I WANT TO USE A SITE?

As with above title, whenever a video is next in queue and starts, the tab crashes. Also, randomly, if a website has an embedded video player, it will crash usually.

This seems to have happened over several updates, so I can't pin point a particular update, and the problem has gotten worse (or at least affected more things) as time has gone on. I thought it might be related to uploading tabs when memory utilization has gotten high, but I have this problem on my system with 96GB of RAM, and I've happens even when I'm using under 48GB of memory and I've tried disabling tab unloading with no change.

The problem I've been seeing first started with Skype web. I'd walk away from my PC, and when I get back to it (monitor is asleep, but PC still running) after I wake up the monitor Skype would start playing messages it appeared to have cached while I was away. It would load up this messages one at a time, complete with notifications, one every couple of seconds. If I'd been away for a while and had gotten several messages it could take several minutes to catch up with where Skype is "current" and usually take so long I end up just reloading the page and so I get the current state without waiting for FF to play through all the messages.

I then started noticing the problem with OctoPrint, similar thing I'll have it up monitoring a print and I'll walk away from the PC and then come back, and same thing, it has to "play" through all the updates that happened while I was way from the PC, again sometimes taking several minutes for it to catch up with the current state for OctoPrint (this is usually visible by watching the temperature graph try and draw updates to catch up with where the printer actually is. During this time OctoPrint is completely unresponsive, so I'm unable to do things like cancel and print or change tabs to look at say the web cam. Again I'm usually forced to just reload the page to get the current state of OctoPrint instead of waiting minutes for it to catch up.

Then recently it's started doing the same thing with Pushbullet, instead of sending notifications as they come if I'm away from the PC, it just caches them when I wake the screen back up. And again, it sits there and plays them, one at a time, every couple seconds, every, last, message, that, came, while, I, was, away, ding, ding, ding, ding, ding. I'm no longer getting multiple notifications at a time, they come through individually and it drives me insane (at sometimes delays notifications as even when I'm using the PC it no longer delivers notifications if I'm not actively using FF).

I assume it's some change to help make FF less memory intensive (which is why I first started looking at Tab Unloading) but I haven't had any luck finding out what's causing the issue, so trying to Google for a solution hasn't yielded any results (cause I'm not really sure what I'm looking for).

It's making using FireFox for "live" pages like message apps and OctoPrint, and notification syncing via Pushbullet unsustainable.

Thanks.

I need to set up my firefox on a new computer. I have an EXTENSIVE automation program that I have written, thousands of lines of code. I need to have the new firefox look exactly like it does on my old PC. On my old system, the color of the "Bar" directly below the very top "Bar" where "File Edit View History Bookmarks Tools Help" exists has a different color than what I see on my new PC.

The old PC shows a grey color, the new PC shows as a bright white. Both Firfoxes are version 112.0.2 (64 bit version)

I have looked through the settings and both firefoxes are the same. How do I set this color? Thanks

Hello Support, how do I make new tabs open on the left, hence in first position and not in last position by default. And also how do I make new tabs always open to the left and not to the right of current tab

Thanks for your help Wolfgang

Hi all, I'm having an issue that I've seen mentioned over several years and without a workable solution - I'm at the point of having to transfer all my browser usage to chrome and abandon my beloved firefox. The issue has been 'answered' by advanced users to tell people to 'inspect' which font is the issue then check local systems font book for corrupted/duplicate fonts: however this is not a satisfactory response. Context: see screen shot attached for what the jibberish looks like, and a point in the 'inspect' view that I believe (guessing) is involved. System: Firefox 112.0.2 (64-bit), MacOS 13.3.1 (a) (22E772610a) on Macbook Pro (13-inch, 2020, 2 GHz Quad-Core Intel Core i5). This same websites do not have any issue on the same computer viewed on Chrome or Safari. Nor is there any problem on my iPhone on the iOS firefox browser.

Firstly this is not a user-friendly solution for most people, I'm afraid. Opening the inspect viewer is mindboggling for anyone who doesn't code and even for people who do some programming but not for websites (like me), it isn't exactly self-explanatory. I think I've managing to find examples that indicate 'Roboto' seems to be consistently involved in the display issue. Secondly, the step for 'fixing' the font that is the culprit - my local system indicates that all fonts are valid and there are no duplicates. I haven't installed manually Roboto as I'm uncertain where to 'safely' get the font from and my computer is owned and managed by my workplace - with overly strict administration/security rules so if I f-up a download of something dodgy my IT service will blacklist me and revoke my admin access... ** which would mean I'd be unable to do my job!**. I wondered if perhaps there is some security setting due to that, which stops website from loading the fonts they choose? From previous 'solutions' it said that having Firefox preference set to "allow websites to choose their own fonts..." should mean the websites can load as needed. If indeed I must manually download fonts for each and every instance that Firefox fails to display text legibly that is equivalent to Firefox being unusable. I'm clearly frustrated and it's because I love FIrefox and the ethos behind it all so leaving for Chrome would be very sad indeed! Help and a solution for normal users would be so very much appreciated. Also where can I properly lodge this issue with peeps who fix things? There are issues of this kind going back years and for both Windows and Mac Systems so it's not a one-off problem but a recurring one! Please pretty please, people who do the magic that makes Firefox - fix this issue... Thanks for reading my rant and for any helpful responses. Cheers, Megan

I am trying to make the address bar thinner (reduce the height), but after trying all the recommendations on the Internet, I did not succeed. I did this through the userChrome.css file and by minimizing the icons. Please help.

Due to some unknown reason from today morning whenever I use paste function, my Firefox crashes and quits. It includes pressing ctrl+v, right click and paste, and edit>paste. It occurs in all webpages and not only with texts, but also when I try to copy/paste for example a bookmark.

My browser is up to date, I rebooted several times, and also opened Firefox in Troubleshoot mode. But the crash still happens.

Does anyone have any idea what the reason of this problem is and how I can fix it?

I use multiple desktops on Windows 10; usually between two and four at a time. Each of those desktops has multiple Firefox windows open.

Whenever I restart my computer (which is not often but it happens) Firefox restores all the previously opened windows onto a single desktop, leaving me to sort out the mess. Firefox also re-opens windows/tabs recently stashed using the Tab Stash extension.

Is there anything I can do to make sure Firefox remembers which windows belongs on which desktop, and to keep stashed windows closed?

What configuration setting do I adjust if I want to change the font size of only the tabs and toolbar text, not the text of the window / body (managed with Windows' "Make text bigger" option)? I've made the text of the tabs and toolbar large enough for my taste, yet that same setting make the text for everything else in the browser way too big. I'd rather not download a third-party extension as the solution as that implies third-party data gathering. Thank you.

I have a vision problem and can only read if dark mode is on. I have dark mode on for firefox but when I go to a website from settings, the back ground is white and blinds me. help

My IDM extension no longer seems to be the default downloader. Downloads now come via the native Windows (8.1) downloader. Can you suggest any way of resolving this issue?

I believe this happened after some Windows update.

Neither in Firefox, nor in Chrome can I get my microphone to work. The browsers are correctly asking for permission to access the microphone, apparently the website gets a positive feedback, but no audio stream.

For example, if I use the online microphone test, the test widget displays a line, but no visualisation of my speaking. https://www.onlinemictest.com/

The webcam works fine, and the microphone does work in other applications.

Teams Web even allows me to switch Microphone from my headset to the internal mic, but it doesn’t change anything.

Might there be some Windows Policies in play that forbid browsers in general to access the microphone?

How can I further analyse this issue?

Thanks a bunch already!

Hello, in version 112.0 editor.use_div_for_default_newlines in FALSE it does not work. When I write in certain forums, it creates a double space between lines, any help?

It worked until today when i update it.

Thx.

please note it seems possible that this category is specifically for download of firefox, this is not so. opting for this category given the possibility that that theory is mistaken, and due to not seeing any other category that might be more suitable

using firefox developer edition (also couldn't find an individual category for this), and when downloading any files, it saves automatically without asking where/what to name it etc., as preferred. but specifically for pdf files, it always opens them in a new tab upon completing the download; this can be very frustrating when downloading larger quantities, especially with it switching to that file tab and away from the source of downloading. firefox is not even the default for opening pdf in the first place

looked through preferences for anything (and tested anything that looks potentially relevant, to no avail), looked for a solution online from various sources and search methods, no dice

how can this be disabled?

Greetings everyone,

I accidentally double clicked on "Downloads" after accessing the "Tools" menu so all of my downloads in the "Downloads list" is now gone... :(

I know that the actual files aren't deleted but I can no longer see the location of the files I've recently downloaded :( :(

Thank you for any help!