Firefox Support Forum

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

Hi When browsing MSN using Firefox, I keep on getting a popup saying I have chose to open a DMS file from https://impressionlink despite me not clicking to download anything.

It always pops up when I browse MSN, but not other sites, and it does not pop up when browsing MSN using other browsers.

I have tried virus and adware scanners, and it is still popping up.

I have attached an image of the pop up.

Any suggestions? Thanks

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

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?

Hi i would like to know how i can change the font size of my Firefox Menu.

i already change the size of the layout whit "layout.css.devPixelsPerPx" but it didn´t change the font size of the tabs or the menu. i did some research and found the userCrome.css technique to change some fonts sizes. i already change the font size of the address bar, PopMenu and tabs. But when it comes to the Main Menu, and bookmarks the font still in the same size. i also try changing the fonts size on preferences but nothing has been working.

i guess there must be a simple command line to add in the userCrome.css file to fix this but i can find it.

if some of you can help me i will appreciate very much.

i am working on a linux machine. thank you very much

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.

I am using a HP Envyx360. When I'm in tab mode the keyboard pops up and than closes suddenly. This only happens for Firefox when I try to type on the address bar or type in any website. It doesn't happen in any other application. If I'm out of tab mode it works fine.

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.

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?

Playing youtube video on Firefox has become a hazard. The power consumption sharply rises whenever a video is plying AND (specifically) when the this youtube tab is the one open (current). As soon as I move to another tab and let the video continue playing this problem disappears and resource consumption looks normal. Then if I go back to the youtube tab then it spikes again sharply.

It has been like this for a week or couple of days now.

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.

My tabs are constantly - several times a day, every day - crashing. I'm not watching any videos, I've tried a clean (deleted profile folder) install, and turning off hardware acceleration. It's not anything attached to my profile, as I sync with a 2nd computer that has zero crash issues.

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.

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

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.