Firefox 技術支援討論區

for the past several days, my youtube thumbnails have been grey boxes. they aren't the standard "no thumbnail :(" grey, instead just a block of grey.

this is not the case for youtube on chrome or on the app. i've tried the following: - restarting firefox (multiple times) - clearing the cache for youtube - reinstalling firefox - restarting my computer - logging out and logging back into my youtube account - using firefox in a private browser

please help.

Hello,

For two firefox updates, I've been having an issue where after about an hour or two of using firefox (it varies), video players on most websites will stop working. Almost every website except for Youtube's videoplayer stops working after an hour, all at once. Restarting firefox fixes it, but it's very annoying to restart firefox every couple of hours, and seems like a problem.

The following things didn't fix it: clearing my cache, disabling my addons one by one, turning off hardware acceleration, trying to watch the video in a private window, or reinstalling firefox. I don't know what's left to try. It has nothing to do with my audio devices.

Please advise, thank you!

Under Firefox "Help" menu I saw that there is a link for "Share ideas and feedback". I posted today an idea to Mozilla Connect "Ideas' section to improve Firefox, but it seems to be deleted. My account page shows I posted "1 post", but no post is visible. Is it possible that my post is deleted by admins for some reason? In that case, shouldn't I receive a message for why it is deleted? Below is my post and related image as attachment.

Title: “Active tab” marker design needs to be changed to make it more functional

Post content: Firefox is my favorite browser. I use several other browsers during my work, as well and the older design of Firefox tab markers (indicating which tab I am on) was much better. Before Firefox ver. 89, the active tab design was more functional as it was immediately clear which tab is the “active tab”. I prepared a visual comparison of how different browsers indicate the active tab. (attached image). Also inserted how it was before Firefox Ver 89. I hope the designers will take this into consideration in the future releases.

This is a recent change -- the desktop browser didn't do this until a few weeks ago. It now plays slideshows automatically. This feature is called Auto-Rotation, but it has nothing to do with rotating the display on a phone or tablet (although that feature has the same name). This feature automatically rotates among the slides in a slideshow. It's incredibly annoying, especially since I typically forget its on (or don't realize I'm looking at a slideshow) and it changes to the 2nd slide just as I have begun reading the 1st. I then have to turn Auto-Rotation off and go back to the 1st slide to continue. When I remember, I have to hurry to turn Auto-Rotation off before it moves to the 2nd slide. Is there any way to turn this off? I can't find one by looking through Settings, and there's nothing on this subject in Help, that I can find. For what it's worth, whoever thought this was a good idea was wrong, but if there's a way to change so it's not the default, I'll be content.

Frequently when I update Firefox something stops working the way I want it to. So after the last update I disabled updates. That was a while ago (version 89) and my browser was getting pretty stale. So I backed everything up, reenabled updates, and now I have version 104.

And, of course, something is broken now. The context menus when I right click are not functioning as before. The userChrome.css is still there in the chrome folder in my profile and has the same contents. The option toolkit.legacyUserProfileCustomizations.stylesheets is set to true. But it doesn't work anymore. I added a line to change the color of the tab toolbar and that worked. So userChrome.css is being read and acted upon. But the other command (I whittled it down to just one additional command for testing) is ignored.

Here is what my userChrome.css looks like right now:

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

1. context-openlinkintab { display:none!important; }
2. TabsToolbar{ background-color: #CCCCCC !important }

But the "Open Link in New Tab" still appears in the context menu when I right click a link. It didn't do this before the upgrade to 104. Did something break in between version 89 and 104 or is it some other oddity?

Any ideas?

So I tried loading a youtube video and it gets stuck loading, I dont know how else to describe it but when I click play, it gets stuck on the buffering/loading icon and does nothing.

I have tried: Scanning my computer for malware Running Firefox in safe mode Refreshing firefox Refreshing the tab Restarting firefox Restarting my computer Disabling my extensions Disabling my proxy connection settings Disabling hardware acceleration

"OpenH264 Video Codec provided by Cisco Systems, Inc." plugin will sit in the "will be installed shortly" status forever if you have HTTPS-Only mode enabled. I have been pulling my hair out for the last few days trying to figure out why I couldn't play YouTube or many other sites videos.

Turns out the site that the library is downloaded from has a bad certificate installed: https://ciscobinary.openh264.org/libopenh264-2.3.0-linux64.6.so.bz2

``` Websites prove their identity via certificates. Firefox does not trust this site because it uses a certificate that is not valid for ciscobinary.openh264.org. The certificate is only valid for the following names: a248.e.akamai.net, *.akamaihd-staging.net, *.akamaihd.net, *.akamaized-staging.net, *.akamaized.net

Error code: SSL_ERROR_BAD_CERT_DOMAIN ```

OS: Fedora 36 Firefox Version: 104.0 (64-bit)

Hello,

I've spent several hours today trying to fix FireFox slow start up on my system. After start up (about 2 full minutes), everything works normally. The hardware is an ASUS A88xm-A MB, A10-6800K processor, 16G DDR3, runs OS and programs off an SSD. I worked through all the slow startup suggestions, ran memtest (0 Errors, 1 Pass), disabled all add ons, (even the OpenH264 video codec (I use the onboard HDMI, no graphics card)), turned off hardware acceleration, etc. When starting in troubleshoot mode, less than 30 seconds, (acceptable), but I really don't know where to begin with the "More Troubleshooting Information" when I look at the table generated by it. There have been no other problems to date with the system, and the long start-up time began with 20.04 Ubuntu (about a minute), then got worse when I upgraded to 22.04 to try to solve THAT problem. Currently running FF 104.0, and the update page says wait for a distro update if that is how it was installed. I believe 104.0 is the latest Linux 64b version though. All updates to the system are done as soon as I'm notified of them. there have been none since the upgrade a few days ago.

Any suggestions? Gotta get some sleep now... TIA, Dave

Occasionally, when I am watching a video on Youtube or Twitch, the video will glitch and cause the browser to go completely white. On Youtube, there will be a small visual glitch and on Twitch, the video will crash and need to be reloaded, but otherwise nothing else happens.

Is there any way to clear the list of previously used locations in the "Add to Bookmarks" applet? Mine have been "frozen" for 4-5 YEARS. In the attached screencap, the entire bottom half of the list is useless - I haven't used "Food Idiots", "Downloads", "MP3" and "Stuff" folders in years.

It's annoying because I use bookmarks almost exclusively for saving sessions (Select All Tabs > Bookmark Tabs), but every time I have to manually select the "Sessions" folder. In fact, when I took the attached screencap I'd just finished saving 11 windows to the Sessions folder... and had to manually select them every time!

Thanks!

The issues I am facing with outlook mail seems to have occurred within the last 3 months. I have used outlook in Chrome and there is no issue. I have gone to the Microsoft site and there are several complaints that Outlook is not usable with Firefox. On my company machine, I limit my personal email to Firefox.

Other web pages seem to be fine, just outlook mail. I use Firefox for most of my testing & personal and Chrome for corporate browsing.

The issues start occurring after about 5 min, within the last month. I am a MacOS user and I have v.104. The issues face range from not limited emails listed, missing icons, javaScript drop-downs not working, not being able to delete emails, not being able to restore emails.

When I refresh the page, more recently Outlook crashes. My cache for Outlook is around 13-14Mb. When I clear the cache, things are fine for about 5-10 min. When the page refresh fails, I get the following consistent error message:- UTC Date: 2022-08-30T18:49:33.551Z Client Id: 1069883F64C04966AFA704CEF4EF3E78 Session Id: a338a732-ad52-4dee-a388-43aac7dac2b8 Client Version: 20220819006.08 BootResult: cdnError Failed resource: https://res-geo.cdn.office.net/owamail/20220819006.08/scripts/../resources/locale/en-gb/owa.MailListItemThreeColumnView.json err: Error: Failed to load localized strings esrc: InitLoc et: ClientError estack: c@https://outlook.live.com/mail/0/?bO=2&sessionId=a338a732-ad52-xxxx-a388-43aac7dac2b8:341:116883 a/a<@https://outlook.live.com/mail/0/?bO=2&sessionId=a338a732-ad52-xxx-a388-43aac7dac2b8:341:116563

Trying to open any link from a pdf opens a page with the url resource://pdf.js/web/ instead of opening the link. The attached image shows what the page that opens looks like. This does not happen on Edge, so it is a Firefox issue.

I have updated to the newest Firefox version and the issue remained the same. I tried clicking on "viewer.html" and it brought me to an empty pdf page that just loads forever and cannot be downloaded.

Please help. I do not want to use Edge or go back to Chrome, but I will if this can't be resolved.

Hi,

Often the ctrl + m (mute tab) shortcut gets in my way while using the browser as i use this shortcut in something else. I would like to know if it is possible to disable that.

Thanks. (Message written using Google Translate)

I changed the screen shortcut icon for https://mappingsupport.com.

Then in the profiles folder, I renamed the file favicon.sqlite, closed Firefox and restarted my PC. But when I saved the mappingsupport shortcut to my screen, I still see the old shortcut image.

I also tried going to Privacy and Security where I deleted 'Cached web content'.

How do I tell Firefox to get rid of that old shortcut image and use the new shortcut image instead?

Chrome on my PC saved the new shortcut icon to my screen. My iPad also saved the new shortcut icon to the screen.

I have recently bought a new laptop and installed Firefox, which I have been using for a long time. After signing into my Firefox account, everything synced over to my new Firefox account, apart from the colorways theme that I chose with the Firefox 94 update - mine is "Foto - Soft". Is there any way that I can get this theme on my newly installed version of Firefox? Thanks.

My wife has an older Mac. About a week ago, a pop-up from Firefox told her to update her program. She loaded in the new one and when she tried to open it she got the message that her computer was too old for the update.

We had to reload the most recent update which had been running on her computer.

Now, none of her bookmarks show up and the bookmark toolbar will not display near the top of the screen as it used to.

None of help items online are of any use because what they say will show up on the screen (such as when you enter "about:profiles") is not what shows up on her screen.

Is there any way to recover her bookmarks, passwords and other saved data, please?

Hi! In Windows 10 new version 104, .pdf are opening as a download as well as a file. I checked settings, and it still shows that .pdf should open as a file. How do I keep it from becoming a download?

See image to see what is happening. This did not happen with any of the older versions.

Thank you so very much for your help!! T.S.

When I click on Bookmark Current Tab in the Bookmarks menu no dialogue box appears and it does not save it. Command D etc. to the right of the menu items are grayed out.

When I right click on the tab and click on Bookmark Tab I do get a dialogue box, but Save is grayed out (i.e. not clickable). I can only click on Cancel.

Clicking on the star in the address bar also does nothing.

Command D does nothing.

I've also discovered I can't edit or remove bookmarks either. Those processes look like they are working, but the changes are not saved.

I have shut down and restarted my MacBook many times since this started happening, as suggested by jscher2000 on the Mozilla Connect Community board, so that doesn't work.

This is Firefox version 104.0.1 (64 bit), on a 2021 MacBook Pro running Mac OS 12.5.1 "Monterey". Both Firefox and the OS are up to date (checked them again just now).

I bought my MacBook new at an Apple store on 08-26-22, and transferred my files and settings from my 2018 MacBook to it from my backup drive, updating to the newest version of Firefox, which I gathered was released just a few days earlier on 08-23-22.