Diễn đàn hỗ trợ Firefox

I have a new macbook air running Sequoia 15.3.2, firefox is up to date, my battery which should technically last about 12 hours and I only get 5. Ran through everything with Apple and they said it is a Firefox issues. I don't have any extensions, add on etc. Thoughts?

Attachment is a screenshot shows task manger shows there are 64 open files open, when I have only 4 windows open. What would causing this?

Over night Firefox closes and close all my open windows. I need the windows remain open.

Thank you for sharing your wisdom with me.

Firefox has stopped obeying target="_blank"

Started a month or so ago.

Take a look at Firefox target="_blank" problem for details.

There is not a topic in the dropdown list that remotely addresses this issue so I just selected Performance and Connectivity for the hell of it.

Some Firefox option is adblocking some links in Publishers Clearing House emails. The same emails work OK in Safari. There are no adblockers (now or ever installed) on this Mac. It's not the end of the world for me but it should be fixed for possible future use.

All of a sudden, I get a "Not enough room to save" error message when I try to download a fill. There is plenty of room on my disk.

Also, it's not giving me the option of just opening the file.

I've been needing to use Edge to download files.

Hi, I have an HTML page - currently on the desktop PC - that contains a few graphics (they relate to IPA sounds) and a bit of javascript which will make the sounds play when the user mouses-over the graphic, and stop on mouse-out. The script uses <embed> tags. I know these arent favoured but I think they should still work, as they have in the past, so the script itself is fine. But there is no sound (obviously I have checked the src is correct and made sure the speakers are on and working. They are.) W10, FF ver 128.6.0esr (64-bit)

Hello to you up there ! I have Windows 11 - 23H2 up to date ! since 21/1/2025 each time I start Firefox (up to date 134.02 - 64 bits) I get a warning from Malwarebytes Browser Guard that blocks a outgoing request coming from Firefox via port 443 to the IP 82.221.136.1 ( = welcometothemachine.co …. what is that ?? analytics ? AI  ??) .... I am asking myself why is Firefox trying to go to that IP because I never did ask for something like that and how to delete the whole request every time now .... (CCleaner does nothing when used) ... bizarre bizarre behaviour yes ! Who can answer me. Can you please also answer me on geomar@scarlet.be because I would not like to miss the answer ? Thanks.

Здравствуйте. Что произошло с браузером. Почему не загружаются страницы, а открываются те, которые открывались когда-то раньше? Мне сейчас постоянно жать на кнопку обновить страницу? Что вы сделали с браузером???

All my other browsers work fine but since April 4, 2025 Firefox won’t work at all. Websites won’t load. I have tried to clear my cache & cookies, I have checked my connection settings, I have checked for malware, I have turned off all my extensions and I have completely restarted my computer several times now, nothing has worked. I also did trouble shoot mode & reinstalled Firefox (though I will admit I maybe didn’t do this step properly). I refreshed Firefox. Why is it not working? What happened? I don’t know what to do as I don’t want to lose all my bookmarks and passwords that I have yet to move over to my password manager. Please help.

When loading certain pages (on web application) the motion icon starts and after several seconds it changes to the sand clock icon despite the setting described in 'https://support.mozilla.org/en-US/questions/1303416' being done - ui.prefersReducedMotion set to 'false'. My work is all done in this web app and it is very important to see when data is being uploaded (grey/black dots) and when the page is supposedly being refreshed with updated data being downloaded (blue/green dots). Why is the preference being ignored and how to fix it so you always get the motion?

Trivial example of "weird" behaviour:

I have an Adobe Reader window open and a Google Chrome window open on my screen. I click on Firefox to open another window and both the Adobe and the Chrome windows are removed from my screen. No tiling. Just moved away. I can get the Adobe and/or Chrome window back, but then Firefox "disappears." This makes Firefox unusable for me. I have NOT changed any of my Firefox settings in probably years. Help please.

Since new update was installed today, in touch screen mode, every time a touch a link of any kind my touch keyboard pops up. This is very annoying. Where can I find the setting to turn off this option?

I have a HUGE problem with Firefox memory usage. Some open instances of firefox are taking anywhere from 600mb to 2.8gb of memory. Since firefox opens MANY instances even with only ONE active window, this very quickly uses all available memory (4gb) causing a full laptop crash.

More concerning is that CLOSING the worst instance of memory usage STILL leaves the single open page/tab open, so what exactly was the memory eating instance actually doing ???

I have included a screengrab of the many remaining instances of firefox in windows task manager AFTER closing the main culprit.

I have also included a screengrab of all the adblockers I use which I believed would limit unnecessary memory usage, but does not seem to be effective.

Many Thanks

I know, sounds stupid, but it is what it is. It happens rarely, only with Firefox on the secondary display from my laptop, via HDMI. It starts with some random few thin horizontal bars across the window itself, and soon, it turns off my display. It seems the bigger the window is, the more severe the issues. So full screen usually, it shuts it off and keeps it off. Not black screen, no signal style. I manage to get it out by Winkey+arrow. If i then put it back same issue. If i lower the width of it, it manages to stay coherent longer, but still resets the display with a quick black screen on page reload. The lower bounds on a 1920x1080 display resolution was 1515 pixels. At 1515 pixels, it works fine, once this is triggered, it's very repeatable on 60-70% of webpages. If i drag another window on top of Firefox, the monitor comes back up.

Before anyone asks: I have tried turning off hardware acceleration. I have tried putting firefox.exe to run on the integrated video card and on the dedicated 1060 Max Q videocard. I have cleared cache and etc.

This persists on a Windows session, across multiple Firefox restarts. A computer restart technically fixes it but i have no clue what triggers it. Laptop monitor works fine.

1)Why did my "thumbnails" to linked stories on my firefox homepage stop loading yesterday? Still not getting them.

2) I received a message a while ago that I need to update firefox or ti will stop working properly. My questions are: - when do I have to update by? - when Microsoft sends me a required update (almost every 3 months or so) they have to restart my laptop ... that wipes out my bookmarks. Will that happen with a the firefox update? That's why I've been reluctant to update.

I do backup and re-enter my bookmarks from a USB drive and reload them after a restart ... but then I also have to reenter passwords for several regular sites and it's a pain in the ass.

Thank you in advance

I’ve noticed that Firefox consumes a lot of memory, especially when I have multiple tabs open. Sometimes, it slows down my entire system, and Task Manager shows Firefox using over 1GB of RAM even with just a few tabs. Other browsers like Chrome or Edge seem to handle memory better with the same number of tabs.

I’ve tried restarting Firefox, closing unused tabs, and disabling a few extensions, but the problem keeps coming back. I even checked techsquest.com for tips, but I’m still struggling. Are there specific settings, hidden features, or optimizations I can apply to reduce Firefox’s memory usage without sacrificing performance?

Here’s what I’ve already checked:

Firefox is updated to the latest version.

No unusual extensions running (just uBlock Origin and Dark Reader).

Hardware acceleration is enabled.

Any help would be appreciated—thanks in advance!