Firefox 技術支援討論區

Firefox won't play any video, on any website at all. I get different error messages on different sites, such as: The video playback was aborted due to a corruption problem or because the video used features your browser did not support OR Sorry, we're having trouble with playing this video. I've tried following some of the advice in the forums here, so I cleared the cache and the cookies, I ensured DRM content is enabled, and I unchecked the 'Use hardware acceleration when possible' option under preferences. None of this has made any difference. I also restarted firefox and installed an adobe flash player add on. Still no success. Any advice?

I have been trying - without success - to stream netflix, hulu, hbo go and disney plus using Firefox Developer edition for the last several months. Each time I go to Netflix it tells me the widevine CDM plugin crashes.

I get various errors while trying to view any videos on Netflix, including "your network does not support streaming" - which I know to be false due to the two ROKU devices on two separate TVs in the house, my PS4 and Chrome all functioning properly on my machine.

On disney plus I see Error 83 - and have attached a few screen shots.

I went to the Shaka Player Demo (as referenced in another ticket) and it also crashed with the following error: Shaka Error MEDIA.VIDEO_ERROR (3,,NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - void __cdecl mozilla::gmp::ChromiumCDMParent::Shutdown(void): ChromiumCDMParent is shutdown)

I have reset firefox - made sure it's updated to the latest version, unchecked and rechecked the DRM checkbox, erased all and created new profiles several times. downloaded (manually) the widevine latest CDM version (according to firefox) and placed fully downloaded versions of the dll files into the proper directory.

I am still getting errors.

I would prefer to use Firefox if at all possible, as I appreciate the tracking protections it affords. I have also - on a trial basis - excepted Disney Plus tracking protections and content restrictions (autoplay allow, all tracking protections off) and I have no extensions running save my 1password extension.

Thank you for any help you can provide.

My firefox just started having problems. I cannot open tabs after I close them by mistake. When i open a new tab, it is a blank page, not my last website, and i checked my settings, and it hasn't changed. All of my history disappeared, and no new history ever appears. All my autofills are gone, and no matter how much I try to change the settings, nothing helps. This is very annoying. Oh, also, some websites won't load completely. What can I do, I'm about to switch to Crome...

After Firefox updated, I can no longer access www.apple.com. This is the error I get now:

Blocked by X-Frame-Options Policy

An error occurred during a connection to idmsa.apple.com.

Firefox prevented this page from loading in this context because the page has an X-Frame-Options policy that disallows it.

Can anyone tell me how to fix this issue as soon as possible. Thank You.

Hi,

Thanks to Mozilla for continuing to develop such a clean browser, with movies made of GIF instead of much larger files.

So we have developed an extension or add-on for many years using the same method. But recently ( maybe I forgot ), with a new developer profile, I am unable to edit any files because the .xpi extension in the extensions folder, is compressed and cannot be navigated in a file Explorer.

In the past, I just install the extension and change the file extension from .xpi to .zip, and then extract into a folder with the same name. Then delete the .xpi/.zip folder, and the new folder acts as a pointer for the same instance of installation. And I can just modify the files in that folder usually and I don't need to restart the browser to see the changes. But lately I cannot do this.

What is the best way to debug the add-on with the least number of steps?

Thanks,

Josh

I have explained the issue on stack exchange, please take a look at this link: https://unix.stackexchange.com/questions/557237/firefox-fallback-font

It is a clean install, no userChrome etc., all settings are default

My Firefox Developer edition was running really slow so I did a refresh not knowing all my extensions would be deleted. I use "One Tab" extension has A TON of links I need to restore. I do have the folder "old firefox data" folder and see something was saved for that extension. How do I restore that file and all my data?

When I try to change my mozilla account password through accounts.mozilla.com nothing happens, but a console error appears ("Unxpected error").

So this has happened me a number of times. When I browse netflix first Firefox becomes unresponsive I cannot navigate through it. Then after 5 to 10 seconds my whole computer becomes unresponsive, I even cannot open task manager to kill any processes or restart the computer. Also when I force a restart from power button when I reopen Firefox it does not generate any bug reports. What I want to learn is how I can gather some additional information for this and feed to Mozilla support since I have nothing, I cannot even get a screenshot. I was not able to find a recent similar problem.

Recently our HTPC had a video issue and it was resolved by changing the HDMI cable. Oddly, this was the catalyst for a Full screen video issue we now have with Firefox (Edge and Chrome work okay). Whenever full screen video is initiated (Plex, TED Talk, YouTUBE, etc), it initially for about 0.5 a second looks fine, then "zooms in" or crops the image so that that we only see the upper left portion of the video in full screen. I have tried replacing the Amplifier (before I realized it was only firefox), reinstalling Firefox, updating our video drivers, and have completely replaced all HDMI cables. Please, if someone could offer a suggestion. I can't figure out what's going on here.

Hello, I have both the regular version of Firefox and the developer version installed and three profiles--one set to open in regular and two in developer. I installed the recent update in the developer version and when attempt to open the regular version, there is a message about having an older version of Firefox installed and corrupt bookmarks and to create a new profile. I don't understand. If I open a new profile, Firefox is up to date; and I can open the regular profile in the developer version through about:profiles. How can I get the profile to open again in the regular version of Firefox? I read the article about downgrading to an older version and losing bookmarks, but I didn't downgrade versions or installations. Thank you.

A recent upgrade introduced a regression for me: FF crashes as soon as I use FUS to switch to another user account or even to the login screen.

This is on Mac OS X 10.9.5 (old but stable and I need to stick to it until further notice), I have an external screen which is also the main screen (has the menubar).

I haven't yet figured out how to get access to the stack backtraces (before or after submitting) but it looks like FF is trying to access some resource that gets invalidated when FUS triggers. It's the only application I've ever seen that cannot survive a FUS trip...

Can anyone reproduce this?

When I use my Microphone from within an iFrame, I don't have the permanent option. In Chrome it is possible though, and even when loading the Page, which containing the iFrame is loaded twice, the Permission granted for my Microphone is saved permanently. In Firefox, this is different. The Permission granted for the content inside the iFrame is only temporarily, and I don't have the option to give it a permanent Permission. If I launch the content of the iFrame as a standalone website, it is giving me the option to permanently allow this Permission though.

Is there any workaround or can you give me any Hint?

Basically, after a website has finished loading, there seems to be a screenshot taken by firefox. I've uploaded a couple of videos an resumed all in a Reddit post that I'll appreciate you take a look at:

https://www.reddit.com/r/firefox/comments/ebpbtq/firefox_seems_to_be_taking_screenshots_every_few/

Hey. I use firefox developer edition. https://support.mozilla.org/en-US/kb/reset-your-master-password-if-you-forgot-it I read the article and the link provided in the article does not solve my problem. file not found. https://prnt.sc/qebuyi but https://prnt.sc/qebx5l

Sorry for my English.

I'm using Firefox 72.0b11 (using 71.0 before, same issue).

When I open Firefox and do noting, The Firefox memory usage is slow rising.

In Process Explorer, The firefox.exe Working Set memory using looks normal,But Private bytes memory usage is too much. (Please see attach screenshot)

I try using about:memory to figure out what's happen, But I can't find problem.

Here is memory-report.json.gz from about:memory , Is any idea can definite why using lot of private memory?

http://www.mediafire.com/file/vgmt2hs0catu0pp/memory-report.json.gz/file

Thank you.

There seems to be no answer posted REGARDING WINDOWS 7-64bit MISSING TITLEBAR.

I just updated FF to v 72.0 - still no fix for the titlebar.

Could someone direct me to a fix (if there is one yet) FOR WINDOWS 7-64.)

THANKS

I had Firefox running for days, maybe even weeks without restarting on my MacBook Pro. Then Firefox crashed and restarted in an auto-installed update a couple of weeks ago. Firefox was unusable for me from then on. It looks like the display is shifted down half a screen, so the bottom of the window is drawn at the top and the top of the window is drawn at the bottom. Mouse-interaction still functions as if the display did not shift, so it is challenging to click around.

I've cleared out everything. Every application settings folder and profile folder I could find, removed Firefox altogether and installed an older version of Firefox. This works right up until an update is installed again. I also made sure I updated OSX to the latest version. The last couple of weeks I've been using Firefox Firefox 61.0b8 without any problems (I disabled auto-updates). But when I installed the latest Firefox version again today, same problem popped up. I'm all out of ideas right now.