Firefox Community Forum

I have used firefox for quiet many years now, but recently after the update, it i sucking in a lot of resources, I am not sure what the problem is but the cpu engagement of all the 4 cores are getting to 50 percent and longer uses are making it go as high as 95 percent. So, I have already done the following,

• Previously I thought it to be snap issue, so I changed to deb but that also didn't changed much.
• Then I thought it to be some other issue and tried to fix few log issues of ubuntu which I think were unrelated to the problem.
• The system is running so hot that one can't put his hand on it for long.
• Ultimately I switched to fedora, and everything came to normal. The firefox then was of version 123 or 125(or 126, but it was 2-3 versions back, you may find it with what version fedora ships with but I remember it to be significantly lesser than 129).
• I use 3-4 windows at a time with 6-10 tabs open(but mostly pdfs). The firefox was working all fine with no temperature and resource issues, then I remembered to do update, and soon as firefox is upgraded to 129. It has started to cause the same issue, it is damaging the hardware, the hissing sound and temperature increase have come back.

The outcome is that I have came to know that there is some problem in either the upgrade process or the new version. THIS IS HIGHLY DISAPPOINTING. Please provided instructions on how to fix it, or should I open a issue in bugzilla, I can not understand what is the problem? please ask for an other information if required.

I created a few virtual hosts and sites on my local machine and this is working perfectly.

Problem is with Firefox, when I enter non-existant url in address bar, Firefox force me to search and don't let me to open the url, but I need to go to this url for testing, developing, etc...

Any solution?

Hello,

I'm experiencing an issue with the search bar on the Firefox homepage. When I click into the search field and begin typing, the cursor jumps to the address bar, and the text I’m entering gets redirected there instead of staying in the search bar.

I've checked my search settings, and everything seems to be in order. I’ve also tried disabling add-ons, but the issue persists. Could you please assist me in resolving this problem?

Thank you for your help.

Best regards, Tivadar Tot

Hi. I got a new laptop some weeks ago (Linux Fedora) and I've been using Firefox without any problems until last week. When watching Youtube videos my system shell crashes completely. This problem ONLY happens with Youtube videos and Firefox. Other browsers work fine and I don't have this problem in other websites.

Recent crashes ID: bp-f6b555b9-0fbb-447d-a3b3-9f7ee0240818 bp-1fad31a3-0735-49dd-92ac-44e2d0240818 bp-19ae85a5-8bd3-4d3b-b366-f65a10240818 bp-7ca6ded3-871e-45ad-8351-f21c40240818 bp-88f4aca2-437b-45d1-8d7a-11a7c0240818 bp-ebb8ed44-af42-44c1-89f9-54b1f0240818 bp-3aa6e40e-467c-4c72-8373-b23e30240818

Firefox 129.0.2 (64-bit) Mozilla Firefox Snap for Ubuntu canonical-002 - 1.0

Running on kubuntu Linux 24.04, kernel version 6.8.0-41-generic (64-bit) KDE Plasma Version 5.27.11 Qt Version 5.15.13

I've posted a description of my problem on the kubuntu forums: https://www.kubuntuforums.net/forum/newbie-support/help-the-new-guy/681835-firefox-eating-up-a-lot-of-cpu

Here is a synopsis of my posts on that thread to distill the most noteworthy symptoms:

I have snap Firefox installed.

$ snap list Name Version Rev Tracking Publisher Notes bare 1.0 5 latest/stable canonical✓ base core22 20240731 1564 latest/stable canonical✓ base firefox 129.0.2-1 4793 latest/stable mozilla✓ - firmware-updater 0+git.5007558 127 latest/stable/… canonical✓ - gnome-42-2204 0+git.510a601 176 latest/stable/… canonical✓ - gtk-common-themes 0.1-81-g442e511 1535 latest/stable/… canonical✓ - snapd 2.63 21759 latest/stable canonical✓ snapd thunderbird 128.1.0esr-1 507 latest/stable/… canonical✓ - $

If I start firefox from the shell command line, it runs fine. It runs the shell script in /usr/bin/firefox, which ultimately executes /snap/bin/firefox. Clearly that shell script is doing some configuration that I don't understand.

If I​ hit Alt-space I see the menu in the referenced screen grab (see attached).

If I select the first entry, to run firefox from the command line, it has the same effect as starting /usr/bin/firefox from a bash shell; it works fine. However, if I select the third entry, firefox does not play any video; I've mostly tested with YouTube videos that have actual video and audio.

I'm not sure what gets executed when I select the third option from the Alt-space menu. It appears from doing a "ps -ef" that it's the same /snap/firefox/... executable. But I'm wondering why is this entry in the Alt-space menu and how does it get initialized or 'configured' to run.

Additionally, if I do start firefox from the entry with the firefox browser icon, and it fails to play video, I must then uninstall firefox using snap and then reinstall in order to get video playback to work. That is, after a failed start, simply exiting firefox and restarting it from the shell command line will not work; firefox will not play video correctly at all.

I also noticed that on my PC desktop, "snap list" lists firefox as "firefox 129.0.2-1 4793 latest/stable mozilla✓ -"

But on my old Lenova laptop running the same kubuntu version, "snap list" lists firefox as "firefox 129.0.2-1 4757 latest/stable mozilla✓ -"

​I'm up to date on both systems via "sudo apt update"' and "sudo apt upgrade"

Even more frustrating, today, for the first time, despite starting firefox from the command line, video still didn't play. I had to uninstall firefox and reinstall it.

I mistakenly dragged a text from a search box and dropped it on my browser page. If this text is a url (Ex: www.some_site.com), Firefox will navigate to that page. How do I prevent Firefox from opening dropped links on pages?

For languages that don't put spaces between words there's a Unicode character zero-width space - ​ aka ​ - that a browser is supposed to use as a cue to break a line. Firefox ignores it.

I want to navigate on search results using the keyboard. I could use tab but it suggests all interactive elements such as news, images, books, videos, search settings and etc one by one. I want to press something and make active first result, then second. If such hotkeys are not provided, maybe there are any extensions with similar functionality?

Hi, I try to visit my website ahsapsaksi.com. When I visit on firefox(Desktop and ios). I see the isimtescil template which is the old version of the website. However when I access from another browser like opera I see the updated website(welcome to acme page) only with VPN connection. I tried to delete cookies, visited in private tab etc., however I couldn't manage to see my updated website in firefox(in both desktop and ios).

Can you help me please?

Now a new update. When I visit the website on firefox with VPN connection, I saw the updated version, and from now on I cannot see the website without the VPN at all. I dont understand what is going on. But I tried to clear that cookie many times. Now it looks like the cookie is deleted not by deleting in the settings but using VPN. Now the problem is I cannot visit the website without VPN. Can you explain my experience? why did it happen?

I am trying to submit a new Add-on, Firefox requires to add 2 factor authentication, and when I am trying to do that and enter code it tells me that is wrong even I am sure it is right. I tried many times with many auth app on my phone Hope to solve that to submit my Add-on

I recently explored the backgrounds on Firefox. I choose one of the, because they look really nice. But after I changed my Firefox Data Collection and Use settings the background disappeared.

Why do you have to keep "Allow Firefox to send technical and interaction data to Mozilla" and "Allow Firefox to install and run studies" enabled?

Hi,

on X11 it does not seem to be possible to copy gifs from firefox.

When copying a gif the "TARGETS" conversion only gives the following atoms:

   TIMESTAMP
   TARGETS
   MULTIPLE
   SAVE_TARGETS
   text/html
   text/_moz_htmlinfo
   text/_moz_htmlcontext
   image/png
   image/bmp
   image/x-bmp
   image/x-MS-bmp
   image/x-icon
   image/x-ico
   image/x-win-bitmap
   image/vnd.microsoft.icon
   application/ico
   image/ico
   image/icon
   text/ico
   image/jpeg
   image/tiff
   image/avif
   image/jxl

When trying to convert to "image/gif" the conversion fails. (I am requesting conversion from the CLIPBOARD atom)

I need to search for more than one search term in about:config. How can I do this?

Is there some kind of syntax I can use like the pipe symbol to do something like oneword|anotherword or do I have to know literally the exact thing I'm looking for before looking?

thanks in advance

I am running Ubuntu 22.04 Jammy on my desktop. Problem does not appear in Windows 10.

I can click the search box and the list of search engines shows. I can change the default search engine in settings. Mouse over highlights the selections.

Clicking on one of the choices does nothing.

I think there have been 2 updates since the problem first appeared.

PS: There also appears to be an issue with js. Some functions on websites do not work although most of the scripts do work. In particular comments on comicskingdom.com do not work and the same with comments on seattletimes.com which apparently uses the same script. Both websites work on Windows 10.

Hi, I'm using Linux Mint 22, Firefox 129.0 (64-bit). Browser is hanging after approximately 4 hours. Not sure if this is a Firefox issue, but this is where I'm starting the troubleshooting process. My suspects are (1) the browser, (2) NVIDIA drivers (3) the new Linux Mint kernel or possibly (4) a mix of the above. This was a fresh install with default options on (Wilma). Using the latest graphics drivers for GeForceRTX 2060, driver version 555.58.02, went down to native drivers, no change. Honestly, this one has me baffled. Been troubleshooting this for 3 days. It feels like a memory leak. Nothing on the crash reports. First, browser will hang, then mouse and keyboard. Hard reboot is the only option. Any help would be appreciated.

I am running Firefox 129.0.2 (64-bit) on Ubuntu 20.04.4

Recently, I have been browsing a StackExchange site and hit the back button of the browser several times (still remaining on StackExchange). I then realized that upon the last button click, Firefox downloaded a weird HTML file called something like ha71ksd.htm. The file was empty (0KB) and when uploading it to VirusTotal it showed me a completely different file there (probably since the hash of an empty file is always the same).

In any case, I am a bit worried that I might have been infected by a virus. Therefore, I'd like to at least reproduce what happened. I read in different places that it might have something to do with a wrong MIME type reported by a server prompting Firefox to download instead of displaying a file. But Stackoverflow having such a misconfiguration is also strange. I know that a 0KB file cannot contain anything malicious but the whole incident seemed highly suspicious and I need to find out what happened.

Any help or tips are appreciated!