Firefox Support Forum

The Widevine CDM 4.10.2209.1 plugin crashes every time in Firefox 78 browser. Was updated on April 21, 2021, maybe it's a bug? I'm not able to uninstall the plugin. Any help would be appreciated, thank you!

Hi!

Since most content is in English and search engines always link to the English version, I usually browse the english version of mozilla pages. But here on support in particular I have to contend with the pathetic date format where you can't tell which is day or month or year. So why can't I find a way to set the date format. Even the majority of tiny websites/forums have an option to specify the date format.

Hello I tried to use Firefox for a meeting with Google Meet. After reaching the front page in Meet, camera is active but I don't see myself. Camera instead is showing very light flashes with various colors.

it's not the OS....i use the latest W10. And of course it's not the camera: if I open the same Meet on Edge or Chrome...in those cases work normally. And of course is not the Firefox out to date....because I checked it is.

Thanks for your help Pier

WidevineCdm plugin is crashing when I try to play videos on Netflix, Hulu, and Peacock. In the browser, Firefox 78.10.0esr on my Mac 10.9. A yellow strip at the top explains that the plugin crashed and asks me to send a report, which I do and asks me to restart the browser, which I do. Nothing works. I tried "safe mode." I tried clearing caches and what not. I think the browser was just updated today. I am totally unable to play videos on those web pages previous mentioned. I am able to watch youtube, however.

Hi, I can't use Netlix since the last automatic update of firefox 2 days ago (78.10.0) - a problem with WidevineCdm. The message from Netflix : "Looks like your browser is no longer supported" and a popup yellow window "Le plugin WidevineCdm a planté" (=WidevineCdm plugin has crashed) Two errors codes, see in attached files

Hello,

since the last automatic update of the Widevine Content Decryption Module (updated today, automatically) the plugin keeps crashing when I want to watch "TV" waipu.tv. I have already re-installed firefox etc, it just won't work.

I have submitted several crash reports, this is the latest: bp-7bc4b8a4-e59b-4f7e-a840-7c0720210422

See screenshot of "crashed"-notice below.

What can I do to fix this?

When i upload files, the default folder that Firefox always opened was the folder from which I last uploaded a file.

This is no longer the case.

Now however, since about a month or two ago, when I try and upload a file, Firefox always opens one particular a folder on my website instead of the last folder I uploaded a file from.

Please, any way out of this trap?

I want Firefox to open the last folder that I uploaded a file from.

Thanks

Every time I close out Firefox and then restart it, the browser address bar has an orange stripe with a robot icon that says my browser is in remote control mode. I have to go into the about:config panel and search for the "Marionette" options. If I toggle the two settings that are true/false and restart, the remote control goes away. I did not install this feature, I have no idea how to use it, I don't need it, and I'm tired of having to do this every time I open Firefox. It's ridiculously annoying to the point that I'm ready to start using another browser. The internet has NO practical help on how to fix this for anyone who is not an expert in computer code. I need a permanent fix for this pesky and annoying bug.

Hi !

Firefox asked me again to create a new profile. Third or forth time within a month or two. Nothing serious, I have to admit, takes a few minutes to recover bookmarks, reset duckduckgo as default search engine, etc., but why is it happening? Version 87.0, Windows 10, 64 bit.

And while I'm here... I use to download a lot of webpages, for information purposes, it's easier than to bookmark them all. Doesn't work correctly for a while now, they are not saved as webpages, but as something resembling html-format (or however to describe it)... Still working with Edge and Opera, so it must be a Firefox issue. And after each update Firefox was reset to French language automatically one or two days later, this also does not happen any more. I'm neither English nor French native speaker, so again, not a real problem, but why is it happening? or rather not happening any more?

Just curious... Thanks in advance for any hint Best regards Michael

Hello! I'm using firefox in tinycore linux to show chromeless some websites but sometimes the screens go white. As this is nothing that happends all the time just doing an F5 or refresh helps to restart the page and works fine. I need help to: Detect the white screen in firefox with a script in bash if possible.

I've searched for firefox command line but I can't find more deep command line to get this error and then execute a script to fix this.

The help from firefox -h I get is this

Usage: firefox [ options ... ] [URL]

      where options include:

X11 options

 --display=DISPLAY  X display to use
 --sync             Make X calls synchronous
 --g-fatal-warnings Make all warnings fatal

Firefox options

 -h or --help       Print this message.
 -v or --version    Print Firefox version.
 --full-version     Print Firefox version, build and platform build ids.
 -P <profile>       Start with <profile>.
 --profile <path>   Start with profile at <path>.
 --migration        Start with migration wizard.
 --ProfileManager   Start with ProfileManager.
 --no-remote        Do not accept or send remote commands; implies
                    --new-instance.
 --new-instance     Open new instance, not a new window in running instance.
 --UILocale <locale> Start with <locale> resources as UI Locale.
 --safe-mode        Disables extensions and themes for this session.
 --allow-downgrade  Allows downgrading a profile.
 --MOZ_LOG=<modules> Treated as MOZ_LOG=<modules> environment variable,
                    overrides it.
 --MOZ_LOG_FILE=<file> Treated as MOZ_LOG_FILE=<file> environment variable,
                    overrides it. If MOZ_LOG_FILE is not specified as an
                    argument or as an environment variable, logging will be
                    written to stdout.
 --headless         Run without a GUI.
 --ssb <uri>        Open a site specific browser for <uri>.
 --browser          Open a browser window.
 --new-window <url> Open <url> in a new window.
 --new-tab <url>    Open <url> in a new tab.
 --private-window <url> Open <url> in a new private window.
 --preferences      Open Preferences dialog.
 --screenshot [<path>] Save screenshot to <path> or in working directory.
 --window-size width[,height] Width and optionally height of screenshot.
 --search <term>    Search <term> with your default search engine.
 --setDefaultBrowser Set this app as the default browser.
 --first-startup    Run post-install actions before opening a new window.
 --kiosk Start the browser in kiosk mode.
 --jsconsole        Open the Browser Console.
 --jsdebugger [<path>] Open the Browser Toolbox. Defaults to the local build
                    but can be overridden by a firefox path.
 --wait-for-jsdebugger Spin event loop until JS debugger connects.
                    Enables debugging (some) application startup code paths.
                    Only has an effect when `--jsdebugger` is also supplied.
 --devtools         Open DevTools on initial load.
 --start-debugger-server [ws:][ <port> | <path> ] Start the devtools server on
                    a TCP port or Unix domain socket path. Defaults to TCP port
                    6000. Use WebSocket protocol if ws: prefix is specified.
 --recording <file> Record drawing for a given URL.
 --recording-output <file> Specify destination file for a drawing recording.

A problem I'm not sure Firefox has addressed or resolved in all the years I've been using Firefox - even after it changed its programming, and the way it saves session (or even bookmark) backups to the profile folder, is: whenever Firefox is forced to shut down after a computer software issue (like freezing, blue screen, extreme sluggishness, etc.), and we presume (with fingers crossed) that Firefox will open back up with all our tabs intact for the past 7 - 20 days, but instead opens with them all missing and forever gone - even after immediately and instinctively proceeding to the profile folder (before shutting down Firefox) to recover them using Mozilla's recovery steps to replace the "places.sqlite" file, I periodically find that every single one of the recovery files has been re-stamped with the same date and time (and missing data) as the new places.sqlite file.

So I hope and pray, that because this issue happens to thousands of Firefox users over time - no matter what Firefox version update their using (because it has happened in several versions for me), that a terrific way to prevent forcing users to find and use a great sessions manager addon that saves tabs (with all their history - that won't also crash or easily be written over), or forcing users to constantly worry and remind themselves to manually backup the required profile files daily, or having to remember minimally, to backup the profile files "before" opening Firefox after a crash, (which seldom happens), that Firefox offers its users the option to set Firefox up to continuously and automatically save a complete new (additional) set of backup files to a different folder of the user's choosing, with the extra option to save a "set" number of session backups, where Firefox can't access them upon opening. Imagine how much anguish, anger and self loathing Firefox will eliminate in the world with this one simple option.

Here's another wish-list item. If Firefox could present the list of open Firefox windows that appear at the top right of the screen whenever hovering the mouse over the Firefox icon in the taskbar, I wish for the popup list to permanently nudge down so it "never" covers up my open tabs in each of the open window's (which is how I know I determin which of the numerous windows to navigate). And of course the list should self adjust whenever I turn the "Menu Bar" on or off. Thank you, in advance, for considering these two important items toward the Firefox experience.

If you're wondering why I haven't moved on to the latest version. It's because I all too "often" encounter my valuable "business" addons no longer working, and the miserable task of trying to go back to the previous version, or trying to find new addons that work half as good. Sometimes all of my addons disappear. I also wish I could turn off Firefox's constant reminder, to upgrade since I've asked twice before, with no Mozilla reply. Thank you again.

I've made and deleted several profiles using the profile manager. Why are the deleted profiles still listed in the appdata .....FF profile path? Can they be deleted?

Hello,

Using Firefox 87.02 on arch linux 64 bit. As mentioned in the subject. Firefox is set to clear history when it closes but it doesn't. Neither am a able to clear the history manually from the preferences menu or otherwise. Do you know any sollution?

Kind regards.

Debugging steps:

   Tried clearing the cache & reloading
   Tried disabling ell extensions+ running browser in Safe Mode.
   Tried several different streams: some streams w/ no customization might fix the problem, but it's not entirely clear to me which streams are "completely" customization-free.
   Tried different browser: Edge does not exhibit this issue

The Problem:

Been noticing this problem in Firefox at https://cytu.be over the last couple of months; this seems to be happening with any stream on the site, ; I don't remember exactly when I started noticing it. This is observed directly on the website, not any third-party site.

Messing with stuff outside of the web player seems to have a tendency to break the web player's volume control, resulting in its volume maxing out and desyncing from the video stream; it almost sounds at times like the audio stream is restarting from the beginning of whatever video is playing, while the video stream continues as normal. I've seen it happen mostly while using a wireless remote + Fliirc to adjust settings (mainly OS volume, brightness, and f.lux settings) but it can also happen from my keyboard, as well as manipulating the web player's volume control too much, and also zooming in/out the webpage too much. Clearing the cache & reloading doesn't work, and neither does disabling all add-ons, or running Firefox in Safe Mode. The only solution I've found so far is to refresh the webpage.

Spoke with site's developer, who remarked that he had not heard of anyone else experiencing this bug, and suggested it must be a Firefox issue; something about how the browser interacts with the OS' audio subsystem is probably causing this bug.

Does not seem to happen in latest version of Edge, for some reason.

Running the latest build of Windows 10 64-Bit Windows 10 64-bit OS Build 19042.928 and Firefox 64-bit 87.0.

My Firefox forgets that I want to use Windows standardapplication (Acrobat reader) when clickin on a .pdf-file. Firefox wants me to save the file after updates. Does anyone have a solution for this issue?

Bonjour,

When i want go to addons.mozilla.org I can't. With this : «Échec de la connexion sécurisée

Une erreur est survenue pendant une connexion à addons.mozilla.org. Le serveur utilise le mécanisme de « key pinning » (HPKP) mais aucune chaîne de confiance pour les certificats n’a pu être établie pour correspondre au pinset. Les violations de « key pinning » ne peuvent pas être forcées.

Code d’erreur : MOZILLA_PKIX_ERROR_KEY_PINNING_FAILURE

   La page que vous essayez de consulter ne peut pas être affichée car l’authenticité des données reçues ne peut être vérifiée.
   Veuillez contacter les propriétaires du site web pour les informer de ce problème.» 

Where are the site proprietary ? ;-) Firefox 87.0 (64 bits) in Debian Sid

Hi, I have a sound interface on OS X 10.11 but firefox is stuck with an audio output pair which is not the one i picked on the system.

This results in all my other applications working fine (itunes, vlc etc) but firefox outputing no sound at all.

Do you know how to change the audio output for Firefox on OS X 10.11 ?

many thansks

My laptop has two GPUs which are the integrated graphics card of the Intel CPU and the graphics card of NVidia. Now I want to use WebRender in Firefox, does it use the integrated graphics card or the NVidia graphics card for rendering?

https://user-media-prod-cdn.itsre-sumo.mozilla.net/uploads/images/2021-04-18-00-57-42-b85c78.png

As shown in the picture, my GPU#1 is active, but the GPU#2 I want to use is not active, how do I make GPU#2 active?

Also: when will WebRender be active?