Firefox 技術支援討論區

Today, when I go to print out a web page, the format of the Print Preview window has changed and the"Simplify Page" option is missing. I use this feature all the time. Without it many pages are impossible to print. How can I restore this feature?

I have changed the settings in about:config, and also with options in the tools menu on Firefox, and I am still having problems, specifically with Fox News, but also other sites that allow a video to automatically play and blast audio. It is very disconcerting that there doesn't seem to be a way to stop this from happening. Can you help? I am using Firefox 86.

When trying to use Google meet, Firefox asks for permission to use the mic from my webcam (Logitech Pro9000) but not video. The only video option shown for permissions is my NDI source. The Logitech is nowhere to be found in the pull-down. Works fine in Edge, Windows Camera, etc.

Hi,

I'm trying to disable the media popup in windows 10, which appears when you lower your volume or skip a song or anything (see added image). I have a brand new pc and on my old pc i was able to fix this easily by doing this: go to about:config and change this: set media.hardwaremediakeys.enabled from true to false.

I did that now, with my new pc as well. But i just does not work, i restarted my browser and pc after changing it, i set it back to true and back to false again, it just will not work.

I googled this issue, but the only solution i find, is what i exactly the thing i described above, nothing else.

How can I set two-sided printing to rotate on the long axis (so both sides are printed in the same direction, and when you turn the page you can keep reading easily)? With the new upgrade it keeps defaulting to printing on the short axis (so the second side is printed upside down) which makes it very difficult to read smoothly. This has always been easy to set previously. Now the Print menu only allows you to toggle Two-Sided Printing on and off, not to choose the axis. The system dialog does include this setting, in theory, but it doesn't work. I have tried changing it to Long-Edge Binding several times. Each time I change the setting and print immediately, and it still prints with Short-Edge Binding which I do not want. Help! If this can't be fixed I will need to stop using two-sided printing entirely, which will mean wasting a lot of paper.

When I record screencasts, I don't want people to see what extensions I'm using. For one, it's distracting, for second, it's a privacy issue.

In chrome (iron, opera...) I can quickly drag and resize the extensions area so nothing is seen. Fast an easy.

Is there a way to do this in Firefox. I am open to extensions or keyboard shortcuts as well!

(Pinning to overflow menu is not a solution. It takes many clicks and a long time.)

Thank you for any help.

Our barcodes will not show up in firefox but are fine in every other browser. Specifically, it is the code39b font. Is there any way around this in firefox? Allowing websites to choose their own fonts is enabled, and changing/disabling the sandbox also did not help. I have not found any helpful add-ons either. Please share if you have any ideas, thank you!

I am asking this question in Safari browser as when I am in Firefox browser I cannot get this page it just goes around circles when trying to log in to any website it is saying enable cookies ? I have my cookies set at standard .!

This started when I got a dll error earlier when I tried to restart Firefox, and it recommended reinstalling the browser. I did that. Now the error was gone but... nothing loaded. I tried to refresh and to boot it in safe mode. Nothing. I tried uninstalling the browser entirely by deleting it and all files associated with it and reinstalling. Didn't fix things. I tried uninstalling and reinstalling Visual C++. Still, not a single thing loads.

my reader view has stopped playing the audio on text on web pges , altho videos and other sounds are coming through separately from reader view option.... what is wrong ?

Left to go to work, laptop died, turned it on and my profile isn't showing up in profile manager when you first start Firefox, but my folder is there.

How can I get my information back? Because I don't recall using an account for Firefox, this email was for my phone

I have pretty strong new asus laptop, and i have been using firefox as my main browser for a few weeks now flawlessly. 3 days ago i had a problem playing sound through any of my butooth devices.

It was working on chrome spotify microsoft edge but not firefox. I have restarted my laptop, uninstalled the driver from my device manager and reinstalled it, refreshed firefox and uninstalled and reinstalled it back on my pc. Nothing has worked.

I have followed all solutions found here, i would appriciate all the help i can get.

I welcomed the Picture-in-Picture feature to the Mac, which allowed me to watch YouTube videos while performing other tasks.

Recently when I have clicked on the Picture-in-Picture icon, the view does the exact opposite of what I want to occur. I want a small window that I can move around and resize. Instead, the video goes Full Screen.

I've tried right-clicking on the icon and on the video, double-right-clicking, looking through Firefox settings, updating to the latest version, etc. -- but stiill don't know how to recover the Picture-in-Picture feature. How do I get that back? Thank you.

Hello,

I have a problem with Firefox. I think this is a bug. I have tested it in Firefox 85, 86 and 87.

When I press Alt, the complete title bar with the menus File, Edit, View, ... appears. Afterwards, when I click Minimize, Maximize, Close, New Tab or List All Tabs, the title bar is minimized again but nothing else happens. Those buttons just don't work.

Is there a way to fix this problem? Is it likely to be fixed sooner than three months/six months/years? Please tell me how I can add anymore useful information. Thanks for your support!

Hi. Has anyone ever had this problem where Firefox suddenly does not work even after reinstalling it?

I updated my Nvidia drivers to 461.40 and when I opened Firefox, it just came up with a blank white window.

I tried entering Safe mode by holding down the Shift button and opening it again but it just hung on the safe mode window that comes up. Tried pressing the buttons but nothing happened.

I thought it must have been the Nvidia update that's done this but I rolled back to the previous version and now Firefox won't even open. It just shows up as a process in task manager.

I've uninstalling and reinstalling to no avail.

Am I missing something?

Is there something in the old profiles that's preventing Firefox to open again?

I believe I was using Firefox 86, running Windows 10 Home.

Hi, I regularly Sync between three devices. The devices are

- PC

- Phone

- Microsoft Surface

PC and Phone are working fine. I can send Tabs between those devices with no problems(my main use of Sync). Unfortunately the Surface doesn't show up as an active device. Sync shows it as "Last seen 2 months ago" so I am unable to send Tabs to that device.

I can Sync the Surface just fine. When I click "Sync Now" it successfully Syncs with no error but the device still shows as "Last seen 2 months ago". Firefox is fully updated on all devices.

Any help would be appreciated. Thanks!

Hi. I keep getting this message Secure Connection Failed The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.

   Please contact the website owners to inform them of this problem.

Learn more…

for several pages I try to open recently on my laptop. I can open them on my phone. On of these pages was open an the tab was accidentally closed (cat) and now I cannot get past this message, except on my phone. I need to be able to open them on my laptop. 

Can anyone help? I have already contacted one site in particular who said there were no problems on their end.

Thank you.