Firefox Support Forum

When I open a new tab, i would like the page to be in focus and not the urlbar. This is what i used to have in my mozilla.cfg: ``` // Auto focus new tab content try {

 Cu.import("resource://gre/modules/Services.jsm");
 Cu.import("resource:///modules/BrowserWindowTracker.jsm");

 Services.obs.addObserver((event) => {
   window = BrowserWindowTracker.getTopWindow();
   window.gBrowser.selectedBrowser.focus();
 }, "browser-open-newtab-start");

} catch(e) { Cu.reportError(e); } ``` This worked until the last update. What solutions are there?

When i go to open a PDF file with Firefox, the text renders incorrectly (see image) for most PDF files, but not all (i'm not sure why. And this only happens with the Flatpak version of Firefox [1]. It doesn't happen with Firefox ESR (DEB version from my distribution) [2] and it doesn't happen if i view the same PDF file with pdf.js in a non-Firefox Flatpak app (GNOME Web) [3].

I've tried reinstalling and tried starting in troubleshoot mode, but neither seemed to fix the issue.

[1]:

• Name: Firefox
• Version: 117.0
• Distribution ID: mozilla-flatpak

[2]:

• Name: Firefox
• Version: 102.15.0esr
• Distribution ID: BLANK (preinstalled with Debian Linux 12)

[3]:

• Name: GNOME Web (Flatpak)
• Version: 44.6

I am using an extension that automatically deletes cookies on Firefox startup. But when I start firefox, I am getting sites listed showing they have one or more cookies but are using no storage. Another Firefox extension indicates there are no cookies from the sites that "Manage Cookies and Site Data" says do have cookies.

Is this a bug in Firefox, a bug in the extension, or a misunderstanding on my part?

I’m having trouble moving firefox to a new computer. I copy the files, expecting to see my existing set up with bookmarks, extensions, and passwords, and I get no response, no errors, just completely fresh firefox.

Both systems are on arch linux and both running Firefox 117.0. I completely close both firefox. I copy ~/.mozilla/firefox to an ext4 thumb drive from my old computer. on the new computer, I delete the existing ~/.mozilla/firefox. I copy the files from the thumb drive to /firefox/. I restart firefox. unmodified firefox

I’ve also tried chowing the files. and also chmoding 700 and 755 (advice from old stackoverflow threads) ive tried chowing and chmoding. Each time i restart the whole process for posterity. Still no response

I’m dumbfounded as to why it’s not working, and I don’t even know where to look now

Hello everyone,

I need help because on Firefox ESR that runs on Debian some css appears really too big. In this example I will show the difference between Firefox and Chrome. If I open this popup from Firefox it appears full width. In Chrome it appears correct. Also I noticed some Icons rendering incorrect.

How can I achieve this? Thannks

I am running Firefox (Flatpak) on Debian 12 and I use a Nelko thermal label printer. I had installed nelko-printer-driver previously and had no issues printing on Firefox but, due to an issue with Debian, I had to reinstall Debian 12. Now, when I try to print a document then Firefox immediately crashes. I have tried:

• Uninstalling the Flatpak and deleting app data
• Help > More Troubleshooting... > Clear Saved Print Settings
• about:config > Reset modified printer settings
• Uninstalled/reinstalled nelko-printer-driver
• Restarted

Using arch's latest version. I recently upgraded my firefox version to 117.0, and can't play any videos from different sources.

The image freezes and is in an eternal buffering state.

I tried downgrading to 116.0 and 115.0, and the issue persists, so it doesn't seem to be related to the latest Firefox version.

So far, I've confirmed the same issue in YouTube and Twitch.

On Twitch, the videos are super laggy. The image freezes, then moves to a different scene, freezes again, and then the same thing over and over.

On YouTube, it always shows as loading. If I try to move it to play a different time in the video, it works for half a second and then freezes again.

The issue still occurs if I try incognito mode, troubleshoot mode and refreshing Firefox. I already tried disabling hardware acceleration (https://support.mozilla.org/en-US/questions/1206076) and have no more ideas or options.

Thanks in advance!

Why does the Mozilla Firefox snap for Ubuntu keep changing the value of browser.opaqueResponseBlocking away from the default and selected FALSE setting to TRUE? This makes Firefox nearly unusable since the streaming video keeps being cut off when Mozilla Firefox snap for Ubuntu keeps changing the value of browser.opaqueResponseBlocking randomly during use. Specifically this is the 116.0.2 (64-bit) Mozilla Firefox snap for Ubuntu canonical-002 - 1.0 that is installed with Ubuntu 23.04. Please advise.

Hi, Various Sites (sometimes firefox as a whole) keep crashing regularly. I am running Arch Linux (6.4.12, default kernel) with Hyprland WM on an old i7-7700K with a Nvidia GTX980TI. Apart from Firefox the system runs stable. When doing research, or just browsing text based sites, firefox is also very stable, but on some sites like twitch, youtube, or idle games like "Antimatter Dimensions" (ivark.github.io) the browser (or page) crashes regularly. It also happens in Troubleshoot mode, also after a clean re-install (including deleting /.mozilla in /home) and since various versions over the last couple of month. The latest crash report ID is bp-67ed2673-4ed2-452b-bc63-dc1060230831. I know I'm running a niche system, but I really like my setup and apart from those crashes it's amazing, so I hope you can help and point me in the right direction as to what could cause the crashes. Thanks for your time. KR, rehajel

Firefox 116.0.3 (64-bit) do not paste in whatsapp web and other applications exemple I copy an image and want to past it in whatsapp web nothing but it work in brave browser...

Hello, Firefox friends!

I'm having some issues with Firefox on my Ubuntu system and I'm really hoping someone can help me fix them.

   Problem with Downloads: When I try to download something and click on a link, a new tab opens. But then it immediately closes and nothing downloads.

   Button Issues: Some buttons within Firefox just don't seem to work.

I've tried a few things already:

   Checked for Firefox and Ubuntu updates
   Ran Firefox in Troubleshoot Mode
   No antivirus because I'm on Ubuntu

If anyone has faced similar issues or knows how to fix this, please help!

Thank you so much!

I am going through the https://support.mozilla.org/en-US/kb/containers#w_manage-your-containers page and I dont have the option to add new containers when I click on the icon. I am only shown the choice to open the current page into one of the default containers. If I open a new empty tab, this icon doesnt show up in the url bar.

I have gone through the manage extensions options as well and I cant find a similar option. Can anybody point out what I am missing?

Operating System : Ubuntu Lunar Lobster (23.04) x64 Firefox version : 116.0.3 (64-bit) installed via snap

I have a disability and totally forgot about this question BUT it is still an issue I would like to find a resolution too, so I am going to try to restate it -- but know I stopped working 2 years ago ... so maybe a resolution isnt horribly required :P

My old question: (This is an issue regardless of platform - MacOS, Linux, or Windows...)

I do a lot of OS switching - I test various Linux distros on my (was 5) but now 3 laptops and one really old 32 bit system for my mother-in-law and I am wondering if I can use FireFox Accounts over and over without making a new service device every time I need something from FF Accts :P (I actually stopped using Sync mainly because of this 'Sync' issue -- how do I know what I have is actually being sync'ed?) I have learned to live with uncertainty not because Firefox is bad or anything but because "I want to be in control of my Data, not someone else...I had thought FF Sync would help me do that but I fear it hasnt and maybe because of my disability it has just gotten worse ..." ... not to even mention FF dropped FF Lockwise - which I loved!  :P

Anyways, this has bugged my off and on for a long time but I have mostly ignored the issue ... until a couple of years ago I discovered I had like 20+ some odd devices on my account -- going back 3+ years or more. Now, I signed out of many of them and I am down to about 15 -- mostly because I am a little confused about how FF Accts determines what to sync and when I start Sync are all of them brought back? Even from 6+ months ago? The one's that were years old I signed out of and deleted but still ... and so, since I use FF for testing and I thought that there shouldn't be that much in each 'sync' test device ... it is sort of confusing...

So, is there a way to use FF Accts 'sync' to get my data to a new device without making a new 'synced' device?

Thx/Bill

PS - in the FF past releases I got what I wanted by just copying the .mozilla directory to the new system but that broke a few releases ago :P too bad stuff has to change :(

Also, please understand that I am on Android, iOS, MacOS, and Linux daily so trying to 'gather' what I am submitting this question on will not lend itself to trying to solve my insanity >< Sorry!

PPS - I have not tried the first solution offered in the old question yet... I am leaning toward giving up on Sync and just using HTML Bookmark files ... it is messier but I know it is my data - unchanged and unyielding :P Thanks  :)

Bill

Sorry, I know this is off topic, but I can't find how to edit a post after I posted it.

The usual way is you click on the three dots (upper right) and you get an EDIT option. All they do here is offer an option to QUOTE the post.

Also - while I have you: Posting links: I posted a couple LOCAL LINKS as I have a couple of threads and they appeared but when you clicked on them `404 - not found`.

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?

Hi folks.

I use Firefox a lot. I have about 36 windows of firefox open and some of those can have a LOT of tabs on/in them.

I have recently "evolved" to using a computer monitor. Before then it was an old flat screen TV - 1336 x 768 resolution (there about).

Now I have a 1080p monitor and things are different.

I use Node-Red (dashboards) and they took a beating with the new size.

I've set THOSE tabs to 133% magnification - and yes that isn't the correct size to emulate the TV. But I only thought of doing this a fair way down the track of trying to rearrange the layouts. (MY MISTAKE)

But I realised that at least not too long down that rabbit hole.

So that WINDOW is set to 133% zoom. But just now I tried to zoom out of another tab on that window and realised that the zoom on the other tabs is changed too.  :(

Am I missing any tricks? I know I could move THOSE tabs to a whole new window and that's that. But in the bigger picture I just want to check.

I'm running Firefox 116.0.2 on Xubuntu 20.04.6. A day ago, it started loading at startup for no apparent reason. I don't want it to that. It's not my default browser, and it is not selected as such. It is not listed in any startup folders or in application autostart in system settings. I tried the winregister and auto update fixes using about:config, and no joy.

Does anyone have any suggestions? It's past annoying.

When I copy text from other websites, I'm not able to paste in the text field of Whatsapp Web. I'm using Firefox Developer Edition Browser in my laptop. But when I copy text from Whatsapp Web itself, I am able to paste in the text field.

This issue started happening just a few days ago.

Here are my specifications:

Browser: Firefox Developer Edition 117.0b8 (64-bit)

OS: Pop!_OS 21.10

Reposting from https://discourse.mozilla.org/t/firefox-upgrade-from-115-116-results-in-broken-screen-capture/121964

Howdy folks!

I am on Arch Linux and recently upgraded Firefox from 115 to 116 and this broke WebRTC screen capture. Whenever I try to share my screen in Microsoft teams and Google Meet, the participants only see a black screen with a cursor. I am able to reproduce the issue on this test page. I had to downgrade to 115 in order to “fix” this critical feature. Before that it was broken in 114 and I had to use Chromium for presentations. I no longer want to touch Chrome with a 100 ft pole since they are trying to introduce Web Environment Integrity.

The only bug I have been able to find is from three years ago:

https://bugzilla.mozilla.org/show_bug.cgi?id=1640771

I don’t want to add a “me too” comment, but was wondering how to show/give my support to get this issue fixed? It is crippling to my work workflow, and I don’t want to be on 115 forever. I am an engineer so I can provide advanced support to a Firefox dev, just not development as firefox is gargantuan beast of a code base.

Any guidance or pointers would be appreciated, Thanks!

When I open `about:preferences` tab, `Downloads` directory is created in my home directory, despite my downloads directory is different. I've read issue 474718 which states that it was fix but i still experience it. Linux x86_64