Firefox Support Forum

Twice in the past 2-3 weeks I have had to restart the computer, Linux Mint 21.2 Firefox 124(when updated in the past couple of days), due to the mouse freezing up and not being able to move the mouse on the screen. That's not the current problem, but it might help direct things to the final solution.

After the most recent reboot last night now I'm having a rather problem. The up/down arrow keys are no longer scroll me up and down a webpage like they always have in the past. Instead of doing smooth scrolling like they always use to, now they are scrolling me up and down the links on a web page. For example, if I were to be on youtube it would first want to scroll me down the left side links before taking me through each and every video link, when the page goes to load in more videos than it wants to go back and scroll me down the left side links again. It acts like it is taking me through the html code, line by line, instead of scrolling me smoothly down the webpage. The only way I can scroll smoothly down the webpage is to use the mouse on the scrollbar on the right side. It does this both in normal mode and in Troubleshooting Mode.

I have checked and beret scrolling is false as well as beret_shortcut. Use autoscrolling, use smooth scrolling, show scrollbars and always underline links are all clicked on. Always use the cursor keys to navigate within pages is unclicked. I have tried different changes between clicking on and unclicking those options with no change being noticed.

How can I get this back to the way it used to run?

On Firefox 124.0.2 (on Ubuntu 22.04.4 LTS), when I click a download link on a web page, Firefox doesn't download the file. I tried disabling all add-ons, but that did nothing. However, I found that when I deselect "Ask you where to save the files" in the browser's Settings and then click the link, it downloads the file to my Downloads folder. Can someone please point me in the right direction to find a solution for this?

I discovered two issues with Firefox on my Wayland Gnome. Picture-in-picture windows should be opened with the "always on top" attribute, but in Wayland they are not on top. It's not a big deal to manually set always-on-top. Although I need to remember to do this after the window appears. The second problem is related to selecting multiple tabs. I should be able to detach selected tabs from the window by dragging them from the tab bar. A new window is then created with the selected tabs. This doesn't work in my Wayland. I can detach one tab, but not multiple tabs at once. I can still move multiple tabs from one window to another open window. So, as a workaround, on Wayland I need to open a new window and then move the selected tabs there. Which is inconvenient. I am curious if anyone else noticed these things on Wayland. There might be something wrong with my instance of Wayland.

In case anyone's interested, under Debian 12, when I resume from hibernation, if I have Firefox running as well as Tbird, if I click on a link in an email, the existing instance of Firefox is ignored and a new instance is opened. The first instance is in fact frozen -- it looks as it should but trying to change tabs or open a new tab is inactive. Seems I have to kill the open instance of FF, then if I click on a link in an email, FF pops up as it should with a new tab for the link, but the existing tabs are all there and all functional. It feels like a bug -- Tbird seems not to know that FF is already running.

I don't know if that was supposed to look like, but when rendering MathML in Firefox 124.0.1 when one uses "mtable" element the browser adds very huge gaps around.

The included image shows output for the following code:

<math display="block">

 <mfrac>
   <mi>A</mi>
   <mn>2</mn>
 </mfrac>
 <mo>=</mo>
 <mrow>
 <mo> ( </mo>
 <mtable><mtr><mtd><mn>1</mn></mtd><mtd><mn>0</mn></mtd><mtd><mn>0</mn></mtd></mtr><mtr><mtd><mn>0</mn></mtd><mtd><mn>1</mn></mtd><mtd><mn>0</mn></mtd></mtr><mtr><mtd><mn>0</mn></mtd><mtd><mn>0</mn></mtd><mtd><mn>1</mn></mtd></mtr></mtable>
 <mo> ) </mo>

</mrow> </math>

I have the HTTP_PROXY, HTTPS_PROXY and FTP_PROXY (and their lowercase counterparts) exported and then the firefox binary is started from the shell script. The settings in firefox say it will 'Use system proxy settings'. Nevertheless I do not see the proxy being used as I can not access the web pages that need the proxy. The 'about:config' also does not show that firefox picked up any proxy related information from the shell environment.

I know the proxy address is correct because if I use brave browser instead of firefox (same shell script that launches brave) I can reach the web pages behind the proxy as expected.

Locking this thread, please continue here: [/questions/1440721]
Can someone please tell me how to answer questions asked, in emails to me, receoved from support helpers. In ~6 emails received so far, my only response option looks like clicking the "Mark It as Solved" button...I can't see how to answer, for example, that I'm using Debian Buster, with KDE. Also, jonzn4SUSE asked me to "see screenshot" of his SUSE distribution, but I can't see that image, nor a file attachment. Thanks again.

I'm at a loss for words here. I have a website I frequent and it has a really annoying behavior. I'm a developer so finally I mustered the strength to do something about it. I googled how to create an extension in Firefox and within 5 minutes I had a working extension that solved their annoyance. However, I can only load it temporarily. If I close Firefox, it goes away. When I try to actually install it, it says I need to have it signed. I have now spent the better part of an hour trying to find out how to self sign it. I refuse to believe that I have to submit this to Mozilla for me to be able to install my own code. Can someone please send me in the direction of how i self sign and install my own extension. I have no intention of publishing, I only want to run this for myself.

I have an add-on ad blocker for youtube and have never gotten ads. This afternoon that stopped. I get ads with every video I click and there is no 'skip ad' on the screen. I added another top rated youtube add blocker, quit firefox and then opened it again. Before, if I clicked a video it started an ad and I could go back and then hit the video again, but now that doesn't work, but if I select to show the video in a new tab, there are no ads in that tab. What can I do to make the ads stop like they used to and never appear? Yes and my OS is Ubuntu 22.04

As the title states. At least half the time when you try right-click and use the "Copy" function, the option is greyed out. If you try to Ctrl+Shift+C, it opens dev tools! This happens on multiple systems that I have that are based on Debian/Ubuntu. So basically, copy functionality is broken for Firefox Linux users...

I just wrote this blog post and someone suggested I contact you.

I have my default browser set to Firefox on Linux (Debian Bookworm). When I open an http:// or https:// URL, it opens in Firefox, but when I open a file:/// URL, it opens in Chromium. It seems that file:/// URL makes it resort to the MIME type.

Is there anything Firefox can do here or is this a Debian or freedesktop.org issue?

Thanks!

Tim

I don't remember with which version of Firefox for Linux this issue started; but I cannot play multiple videos at once. If I open two tabs with video sources one of the videos will automatically pause if I start watching the second one.

I have tried disabling my add-ons but the issue persists and I don't think there should be any reason for any of them interfering with videos.

Currently running Firefox 120.0 (64-bit - Arch Linux)

Hi, I have a problem and I can't find any solution.

I am Linux Mint Cinnamon user, When I type Korean in the Firefox Browser, type Korean word and type 'spacebar', blank is made before the last character.

For example, like this. '안녕하세 요', '반갑습니 다', '오늘 은뭐하세?요 ' like 'firefo x', 'googl e' How can I solve this problem?

Sheesh, I tried to append to another question but failed. Just as well... I am using a Dell Inspiron 1545 laptop with Ubuntu 22.04.3 LTS. Every time I put my laptop in standby mode (close the display) then reopen the Firefox window expands beyond the left edge of the computer. I tried some solutions offered on the forum but they did not help. Now when this happens I hit the maximize button and the Firefox display actually shrinks to a small size. That's counterintuitive but... When I hit the maximize button again the Firefox window expands to the correct size. So it's now only a minor annoyance. It seems like there ought to be a simple solution to this but I haven't found it yet.

So I was sent a picture in .heic format. Trying to open it FF entered an endless loop opening new tabs with names like: "/tmp/pid-949/IMG_9409.heic". There was no easy way to stop it, the 'X' button did nothing. It opened hundreds of tabs. I had to kill all my tabs to get rid of them. BTW there's supposed to be a 'Recover Previous Session' button in the main menu. Not there. On line, I see several different images of what my main menu is supposed to look like but mine is nothing like that. I have 115.6.0esr (64-bit).

If i am on amazon for example and an item has more than 1 option, Honey presents drop down selection box so you can choose which one to drop list The issue is the drop down box never opens when you click on it, doesn't matter where on it you click, it wont open. I have cleared cache, reinstalled honey and nothing helps. I have multiple desktop pc's all running tumbleweed and they all have this issue. If i load Chromium that works ok, but i use Firefox and not Chromium. I'm using openSuse Tumbleweed (latest update).

Hello,

I tried opening an .md file with Firefox. It seems that this was a bad idea. Now, my browser keeps opening new tabs indefinitely. I tried rebooting my computer (I am using Ubuntu), I tried removing the handlers.json files from the .modzilla folder in my home directory, but it has no effect: whenever I try to open Firefox this infinite loop goes on right were I left it closing the browser. Please help so I can use it again! Best.

Hi everyone.

I recently had to shut down my Linux machine with several Firefox tabs and windows open.

When the system came back up, I was unable to launch Firefox. When I tried, I received:

$ firefox

XPCOMGlueLoad error for file /snap/firefox/2391/usr/lib/firefox/libmozgtk.so: libgtk-3.so.0: cannot open shared object file: No such file or directory Couldn't load XPCOM.

I'm running on Kubuntu.

Also, when I downloaded the portable version if Firefox (which ran) my profile was gone. None of my tabs, etc. When I ran the profile manager, the only other profile that was present was ancient!

So, I'd like to:

1. Fix Firefox so that the native version runs. 2. Recover my old tabs, windows and extensions.

Any help would be most appreciated.

Mike.