Firefox Support Forum

Hi, I can no longer print directly from Firefox, my printer is missing. I can only print to PDF there. This must have crept in with the last update. I am using this version 122.0-2.1 3728 latest/stable mozilla✓ My operating system is Ubuntu and I have installed Firefox from snap sources.

I'm trying to create a Drag & Drop file feature in my web page following this doc https://developer.mozilla.org/en-US/docs/Web/API/HTML_Drag_and_Drop_API/File_drag_and_drop

The dropHandler function works as expected the first time I tried to drop a file into a "drop area" div, but then does not work anymore. In all subsequent calls, the drop event is triggered but there is no file in

`` event.dataTransfer.items // empty event.dataTransfer.files // empty ```

This behavior is the same in Troubleshoot Mode.

Additional data

Firefox version: 123.0.1 (64 bits) OS: Debian 12

Hello, In old versions of Firefox picture-in-picture mode was "always on top" by default, now "always on top" mus to be enabled every time I pop-out every video. Is there any solution to make picture-in-picture mode "always on top" by default?

I want to remove the top toolbar. I actually use the plug-in called “New windows without toolbar” for this, but I have to activate this plug-in by clicking on it every time. I want the toolbar to not appear at all when Firefox first opens, how can I achieve this?

Sorry for English..

Hi,

Using Firefox on Fedora Silverblue (technically ublue), I'm getting stutters and skips through youtube videos. Have messed with combinations of hardware accel, wayland mode, and vaapi, but nothing seems to have helped. Videos work fine in vanilla Chrome.

Hardware is an AMD 7840u framework laptop.

Firefox runs fine most of the time. If I right-click to download an image, or click a link to download a PDF or other file, or Save HTML, I see the "Save file" dialog, click Save and then Firefox freezes up for a while, maybe a minute or two. Pages won't scroll. I can't switch tabs. I can bring up a different firefox window and it redraws its contents, but I can't scroll or do anything else.

This didn't happen a month ago, then one day after a system upgrade, it happens every time. I'm using FF 123.0.1 on Arch Linux. 64GB RAM, so it's not a memory shortage. I have upgraded one or two times more since the upgrade when this appeared. Chromium is not affected, Thunderbird is fine, and all other software continues to be fine as before, including when saving files. Only FF has this problem.

What is the problem and solution? Are there ways to gather more info to diagnose the problem, if needed?

Hello guys, so in the past 2-3 days i started facing Cross-Origin Request Blocked for a lot of websites lets take chatgpt for example, if i visit it i get:

Content-Security-Policy warnings 2 Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://cdn.oaistatic.com/_next/static/chunks/sso.74deac81d652476b.js?dpl=f90a861ef09abad575887be5d613ce15a4fdb6d9. (Reason: CORS request did not succeed). Status code: (null). The resource from “https://cdn.oaistatic.com/_next/static/chunks/sso.74deac81d652476b.js?dpl=f90a861ef09abad575887be5d613ce15a4fdb6d9” was blocked due to MIME type (“text/plain”) mismatch (X-Content-Type-Options: nosniff).

and its getting so annoying that its blocking a lot of websites, i tried chromium it works fine and works awesomely no cors no problems. I even tried to disable the firefox protection, dns over https on/off, change my main dns upstream, installed firefox developer, compete uninstall/reinstall, cache clear from installers and from firefox it self nothing is working. I will provide firefox developer edition troubleshooting information but keep in mind it doesnt work on both firefox normal and developer

Please any help would be appreciate it.

Firefox v124.0.2-1

I am running Firefox 122.0 on Ubuntu 22.04. When I have a decent number of tabs open, firefox will often randomly decide to lock up completely. GUI is almost entirely unresponsive. I can right click the menu bar area and get the Menu Bar/Bookmark Options/etc. context menu, but it's also screwed up (2 options that are normally there are completely missing). This has occurred for a year or so. Originally, I used the snap version but recently backed up and switched to installing from .deb. Still the same issue. I saw recommendations for turning off hardware acceleration, and that didn't prevent the problem. Running `top`, I see that I always have plenty of memory (at least 10G free) free and worst case 1 thread is being run 100% but the others are hardly being utilized. No crash reports are generated (I will pkill firefox to stop it). Addons and extensions are all disabled.

I recently realized that hitting the windows key with firefox frozen will allow the web page to show again, but it's back to frozen. I keep hitting the windows key, and it will unfreeze just momentarily to show me the current webpage that is up. I can also Ctrl+N and open a new window, and the new window works perfectly fine independent of the completely frozen first window.

the Icons code on github in this file are not correct rendered in Firefox. If I use these icons in my terminal they will get rendered in the terminal.

• fonts-font-awesome is installed
• Allow pages to use their own fonts is enabled
• all addons are disabled
• security.sandbox.content.level 1
• gfx.downloadable_fonts.enabled true
• use hardware acceleration available enable/disable makes no difference

• Ubuntu 23.10
• 6.5.0-26-generic
• Mozilla Firefox 124.0.1

I am running Firefox 119.0 on Linux and am unable to stream video on many sites. I have tested a few sites, and the only site that actually works for streaming video is YouTube. The others either say 'Source Error' or just load forever.

Things I have tried:

• Accepting cookies (via site exception)

• Turned off Enhanced Tracking Protection for the site that won't stream video

• Turned off pop-up blocker

• Enabled auto-play of video and audio on the site

• Checked for updates of Firefox (but there are none available)

• Launched Firefox in Troubleshooting mode with all extensions and customizations disabled, but this makes no difference

At this point, after doing some online research and trying everything I can think of, I'm really out of ideas.

I would appreciate any suggestions or information anybody has.

Thank you

I usually have firefox running. Sometimes I want to display a file on my computer in firefox. Until today (don't know what happened today) I could; firefox would add a new tab for display of that file. Now it gives me an error, reports, 'Firefox is already running, but not responding. To use Firefox, you must first close the existing Firefox process, restart your device, or use a different profile'. This is inconvenient.

With increasing frustration, I'm am trying top retain certain cookies when deleting other cookies and history. Instructions I read say use "Delete cookies and site data when Firefox closes" with exceptions noted, and do not toggle "clear history when Firefox closes." Except that in my Firefox settings, they work in tandem - the choices are both on or both off. I can't turn one on and the other off. Under manage exceptions, I am entering the entire website address with the https. Any suggestions? Thanks. Joe Markarian

i am seeing the flatpack of firefox trying to roll back my install. but when i perform the download i get this.

Aborted due to failure (Error pulling from repo: GPG verification enabled, but no signatures found (use gpg-verify=false in remote config to disable))

On bootup firefox opens a single window which says the following:

Sorry. We’re having trouble getting your pages back." We are having trouble restoring your last browsing session. Select Restore Session to try again.

The restore function succeeds in restoring 6 windows from the prior session, but this notice keeps appearing on every bootup.

Here are a few relevant details from about: config

• browser.sessionstore.max_resumed_crashes (is set to 1)
• browser.sessionstore.resume_from_crash (is set to true)
• No 3rd party third party cleaning software
• Two extensions, tab stash and tree tabs
• There are no entries in about:crash for this event

Have been using Firefox from 2004 with 5-10 open windows which appear on bootup as they existed from the prior session. This is the first occurance of this error. Appreciate your support. Here are a few system details:

1.) 28gb ram 2.) Linux ~ LMDE 5 (Elsie) 3.) Firefox ESR 115.8 (oesr) 64 bit.

In the network tab, I can see all the html, css, and js loaded on my page.

When I click on Start performance analysis (stopwatch icon in bottom left), it shows pie charts of the asset sizes, but CSS is missing.

When I click the back button, the network tab only shows 14 items, and no CSS.

I'm using Firefox on Linux Mint, installed through the software manager.

Please provide a native way to change the behaviour of Ctrl-W. I tend to switch between aZerty and qWerty keyboard layouts, as a result I sometimes hit ctrl-W when I would like to ctrl-Z some change. As a result I tend to lose some work when the tab I'm working in closes. It would be nice to be able to rebind some of the default key combinations, or at least disable them.

I found a method description that edits the omni.ja file, but also that this method is unsupported. Moreover, running ubuntu kind of rules this out as an option, as canonical has ruled that firefox is to be installed via snap, in a read-only data store.

The twitter videos are not getting played in Firefox, details are below:

Version: 122.0 (64-bit) OS: Fedora 39

Below is the error message : [Child 308118, MediaDecoderStateMachine #2] WARNING: Decoder=7fdadbc58400 Decode error: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - mozilla::MediaResult mozilla::FFmpegDataDecoder<60>::InitDecoder(AVDictionary**): Couldn't open avcodec: file /builddir/build/BUILD/firefox-122.0/dom/media/MediaDecoderStateMachineBase.cpp:166

Thanks!

Linux-ESR versions 115.8 and 115.9 are constantly crashing in my Acer CB514-2H chromebook. Previous versions of Linux-ESR have worked without any problems. It does work in "safe mode", but not in normal mode with all extensions and plugins disabled. Appears to be related to something that is also disabled in the "safe mode" besides extensions and plugins.

This computer is running a MediaTek Kompanio 828 processor, 8 GB RAM and 64 GB eMMC.

I appreciate any help and advice that you can give me. If I can provide any info, let me know.

This is a link to a recent crash report.

https://crash-stats.mozilla.org/report/index/bp-d7586af4-bf78-4716-a102-8b2500240408

I fill out a specific online form on a regular basis. When I used Chrome several months ago it always remembered my form data. But no matter what setting I set I cannot get this to work on Firefox.

Under Privacy & Security I've set History to Use custom settings for history: Remember browsing and download history enabled Remember search and form history enabled Clear history when Firefox closes disabled

I have also checked antivirus, antispyware, firewall, and privacy programs are not interfering. I do have a VPN but only use this when using online banking.